Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., University of Toronto (Canada) 1987
  • M.A., University of Toronto (Canada) 1983
  • B.A., University of Toronto (Canada) 1980
• 

  Previous Appointments & Affiliations

  • Associate Professor of Electrical Engineering, Electrical and Computer Engineering, Pratt School of Engineering 1996 - 2000
  • Associate Professor of Electrical Engineering, Electrical and Computer Engineering, Pratt School of Engineering 1992 - 1996
• Recognition
• 

  In the News

  • MAY 13, 2021

    Pratt School of Engineering

    Bringing Radar Down From the Clouds to the City Streets

  • JUN 18, 2013

    Pratt Engineers Awarded Four Department of Defense Grants
• Research
• 

  Selected Grants

  • AI Institute: Athena: AI-Driven Next-generation Networks at the Edge awarded by  National Science Foundation 2021 - 2026
  • Enhanced Long-Range Maritime Vessel Classification awarded by RDR Tech 2022
  • UAS Detection, Classification and Tracking with Millimeter-Wave MIMO Radar awarded by Toyon Research Corporation 2022
  • Neural-Network Enhanced Radar Surveillance (NNERS) awarded by Defense Advanced Research Projects Agency 2020 - 2022
  • Multi-Aperture Passive Sonar Array Calibration using Ocean Ambient Noise awarded by Office of Naval Research 2018 - 2021
  • Non-Recurrent Wideband Continuous Active Sonar awarded by Office of Naval Research 2012 - 2014
  • MIMO Radar Signal Processing in Complex Propagation Environments awarded by Office of Naval Research 2012 - 2013
  • Active and Passive Acoustic Scatterer Discrimination in an Ocean Waveguide awarded by Office of Naval Research 2008 - 2011
  • Multipath Space-Time Adaptive Radar Signal Processing awarded by Office of Naval Research 2008 - 2011
  • Autonomous Wide Aperture Cluster for Surveillance (AWACS): Adaptive and Collaborative Signal Processing awarded by Office of Naval Research 2005 - 2010
  • RF Time-Reversal Methods for Imaging & Detection awarded by Office of Naval Research 2006 - 2009
  • Environmental Exploitation, System Optimization, Signal Processing, and CONOPS for Persistent Littoral Undersea Surveillance awarded by Office of Naval Research 2008 - 2009
  • Adaptive Signal Processing for Advanced Over-the-Horizon HF Radars awarded by Office of Naval Research 2005 - 2008
  • Wide-Band Multipath Depth Estimation and Partially Adaptive Space-Time Processing for Active Sonar awarded by Office of Naval Research 2004 - 2008
  • To Support Distributed Microphone Array Testbed for Speaker Separation and Localization awarded by Lord Foundation of North Carolina 2007 - 2008
  • Broadband Passive Sonar Detection by Time-Frequency Striation Processing awarded by Office of Naval Research 2005 - 2006
  • Physics-Assisted Space-Time Adaptive Multipath Clutter Mitigation awarded by Office of Naval Research 2002 - 2006
  • Dynamic Multipath Suppression of Endfire Interference with Towed Passive Sonar Arrays awarded by Office of Naval Research 2003 - 2005
  • Entropy-based Adaptive Clutter Mitigation and Frequency-Hopped Altitude Estimation awarded by Naval Research Laboratory 2004 - 2005
  • Efficient Representation of Oceanographic Uncertainty in Passive Sonar Performance Prediction awarded by Office of Naval Research 2001 - 2004
  • Space-Time Adaptive Processing and Array Shape Estimation for Towed Active Sonar Arrays awarded by Office of Naval Research 2002 - 2004
  • Signal Processing Development and Testing for ROTHR awarded by Office of Naval Research 2002 - 2003
  • Clutter Mitigation for Multi-Static Over-the-Horizon HF Radar awarded by Office of Naval Research 2002
  • Space-Time Matched-field Depth Discrimination for Active and Passive Sonar awarded by Office of Naval Research 2000 - 2002
  • Electromagnetic Matched-field Processing for Over-the-Horizon Radar awarded by Office of Naval Research 1999 - 2002
  • Multi-Ping Matched Field Depth Discrimination for Low Frequency Active Sonar awarded by Office of Naval Research 1998 - 2000
  • Multi-ping Matched-field Depth Discrimination for Low Frequency Active Sonar awarded by Office of Naval Research 1998 - 2000
  • Robust Electromagnetic Sensor Array Processing under Stochastic Propagation Conditions awarded by Office of Naval Research 1993 - 1998
  • Tropospheric Refractivity Estimation Using Radar Clutter from the Sea Surface awarded by  National Science Foundation 1994 - 1998
  • Matched-field Localization in a Random Ocean Channel awarded by Office of Naval Research 1993 - 1996
  • Matched-field Localization of Transient Sources in a Random Ocean Channel awarded by Office of Naval Research 1993 - 1996
  • Matched-Field Source Location in a Random Ocean Channel awarded by Office of Naval Research 1993 - 1995
  • Matched-field Source Localization in a Random Ocean Channel awarded by Office of Naval Research 1993 - 1995
• 

  External Relationships

  • Echodyne Corp
  • STRAD Corporation
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Young, A. H., H. A. Harms, G. W. Hickman, J. S. Rogers, and J. L. Krolik. “Waveguide-Invariant-Based Ranging and Receiver Localization Using Tonal Sources of Opportunity.” Ieee Journal of Oceanic Engineering 45, no. 2 (April 1, 2020): 631–44. https://doi.org/10.1109/JOE.2018.2883855.
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    • Soli, J., G. Hickman, and J. Krolik. “Range-Velocity Estimation Bounds for Nonuniform Sonar Comb Signals.” Ieee Transactions on Aerospace and Electronic Systems 54, no. 6 (December 1, 2018): 2980–91. https://doi.org/10.1109/TAES.2018.2836558.
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    • Ramirez, J., and J. L. Krolik. “Synthetic aperture processing for passive co-prime linear sensor arrays.” Digital Signal Processing: A Review Journal 61 (February 1, 2017): 62–75. https://doi.org/10.1016/j.dsp.2016.07.021.
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    • Xu, C., A. Harms, and J. Krolik. “MIMO space-delay adaptive processing for wide-area indoor human motion classification.” Ieee Transactions on Aerospace and Electronic Systems 52, no. 3 (June 1, 2016): 1384–98. https://doi.org/10.1109/TAES.2016.150250.
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    • Cnaan-On, I., S. J. Thomas, J. L. Krolik, and M. S. Reynolds. “Multichannel Backscatter Communication and Ranging for Distributed Sensing With an FMCW Radar.” Ieee Transactions on Microwave Theory and Techniques 63, no. 7 (July 1, 2015): 2375–83. https://doi.org/10.1109/TMTT.2015.2439678.
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    • Odom, J. L., and J. L. Krolik. “Passive Towed Array Shape Estimation Using Heading and Acoustic Data.” Ieee Journal of Oceanic Engineering 40, no. 2 (April 1, 2015): 465–74. https://doi.org/10.1109/JOE.2014.2318531.
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    • Yu, J., and J. Krolik. “MIMO adaptive beamforming for nonseparable multipath clutter mitigation.” Ieee Transactions on Aerospace and Electronic Systems 50, no. 4 (October 1, 2014): 2604–18. https://doi.org/10.1109/TAES.2014.130451.
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    • Li, L., and J. L. Krolik. “Simultaneous target and multipath positioning.” Ieee Journal on Selected Topics in Signal Processing 8, no. 1 (February 1, 2014): 153–65. https://doi.org/10.1109/JSTSP.2013.2289949.
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    • Cnaan-On, I., S. J. Thomas, M. S. Reynolds, and J. L. Krolik. “Multichannel radar backscatter communication and localization.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, January 1, 2014, 76–80. https://doi.org/10.1109/ICASSP.2014.6853561.
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    • Harms, A., G. Hickman, M. Papazoglou, and J. Krolik. “Predicting the array gain of partially coherent planar HF arrays.” Ieee National Radar Conference  Proceedings, January 1, 2014, 1456–59. https://doi.org/10.1109/RADAR.2014.6875830.
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    • Hickman, G., J. L. Krolik, and D. B. Kilfoyle. “Cramer-Rao bounds for HF source geolocation with a vector sensor array.” Ieee National Radar Conference  Proceedings, January 1, 2014, 936–39. https://doi.org/10.1109/RADAR.2014.6875726.
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    • Ramirez, J., J. Odom, and J. Krolik. “Exploiting array motion for augmentation of co-prime arrays.” Proceedings of the Ieee Sensor Array and Multichannel Signal Processing Workshop, January 1, 2014, 525–28. https://doi.org/10.1109/SAM.2014.6882458.
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    • Xu, C., and J. Krolik. “MIMO RF probe for wide-area indoor human motion monitoring.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, January 1, 2014, 6047–51. https://doi.org/10.1109/ICASSP.2014.6854765.
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    • Odom, J. L., and J. L. Krolik. “Adaptive beamforming with augmentable arrays in non-stationary environments.” 2013 5th Ieee International Workshop on Computational Advances in Multi Sensor Adaptive Processing, Camsap 2013, December 1, 2013, 324–27. https://doi.org/10.1109/CAMSAP.2013.6714073.
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    • Yu, J., and J. Krolik. “Adaptive phase-array calibration using MIMO radar clutter.” Ieee National Radar Conference  Proceedings, October 7, 2013. https://doi.org/10.1109/RADAR.2013.6586120.
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    • Odom, J. L., and J. Krolik. “Heading and hydrophone data fusion for towed array shape estimation.” Proceedings of Meetings on Acoustics 19 (June 19, 2013). https://doi.org/10.1121/1.4800390.
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    • Li, L., and J. L. Krolik. “Cramer-Rao performance bounds for simultaneous target and multipath positioning.” Conference Record  Asilomar Conference on Signals, Systems and Computers, January 1, 2013, 2150–54. https://doi.org/10.1109/ACSSC.2013.6810689.
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    • Li, L., and J. L. Krolik. “Simultaneous Target and Multipath Positioning via multi-hypothesis single-cluster PHD filtering.” Conference Record  Asilomar Conference on Signals, Systems and Computers, January 1, 2013, 461–65. https://doi.org/10.1109/ACSSC.2013.6810319.
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    • Odom, Jonathan L., Jeffrey L. Krolik, and Jeffrey S. Rogers. “Maximum-likelihood spatial spectrum estimation in dynamic environments with a short maneuverable array.” The Journal of the Acoustical Society of America 133, no. 1 (January 2013): 311–22. https://doi.org/10.1121/1.4770233.
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    • Li, L., and J. L. Krolik. “Simultaneous target and multipath positioning with MIMO radar.” Iet Conference Publications 2012, no. 603 CP (December 1, 2012). https://doi.org/10.1049/cp.2012.1585.
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    • Yu, J., M. Reynolds, and J. Krolik. “Adaptive baseband interference suppression in multi-channel heterodyne radar receivers.” Iet Conference Publications 2012, no. 603 CP (December 1, 2012). https://doi.org/10.1049/cp.2012.1584.
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    • Yu, J., and J. Krolik. “MIMO multipath clutter mitigation for GMTI automotive radar in urban environments.” Iet Conference Publications 2012, no. 603 CP (December 1, 2012). https://doi.org/10.1049/cp.2012.1565.
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    • Odom, J. L., and J. L. Krolik. “Broadband field directionality mapping with spatially-aliased arrays.” Proceedings of the Ieee Sensor Array and Multichannel Signal Processing Workshop, October 12, 2012, 449–52. https://doi.org/10.1109/SAM.2012.6250535.
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    • Li, L., and J. L. Krolik. “Target tracking in uncertain multipath environments using Viterbi data association.” Fusion 2011  14th International Conference on Information Fusion, September 13, 2011.
    • Li, L., and J. L. Krolik. “Vehicular MIMO SAR imaging in multipath environments.” Ieee National Radar Conference  Proceedings, September 12, 2011, 989–94. https://doi.org/10.1109/RADAR.2011.5960684.
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    • Lee, W. W., and J. L. Krolik. “Space-time adaptive processing for range-folded spread-Doppler radar clutter mitigation.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, August 18, 2011, 2772–75. https://doi.org/10.1109/ICASSP.2011.5947059.
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    • Goldhahn, Ryan, Granger Hickman, and Jeffrey Krolik. “A waveguide invariant adaptive matched filter for active sonar target depth classification.” The Journal of the Acoustical Society of America 129, no. 4 (April 2011): 1813–24. https://doi.org/10.1121/1.3557041.
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    • Hickman, G., and J. L. Krolik. “MIMO GMTI radar with multipath clutter suppression.” 2010 Ieee Sensor Array and Multichannel Signal Processing Workshop, Sam 2010, December 20, 2010, 65–68. https://doi.org/10.1109/SAM.2010.5606764.
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    • Rogers, J. S., and J. L. Krolik. “An online method for time-varying spatial spectrum estimation using a towed acoustic array.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2010, 1837–41. https://doi.org/10.1109/ACSSC.2010.5757894.
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    • Rogers, Jeffrey S., and Jeffrey L. Krolik. “Time-varying spatial spectrum estimation with a maneuverable towed array.” The Journal of the Acoustical Society of America 128, no. 6 (December 2010): 3543–53. https://doi.org/10.1121/1.3505121.
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    • Yu, J., and J. Krolik. “Quadrature slow-time MIMO radar with experimental results.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2010, 2134–37. https://doi.org/10.1109/ACSSC.2010.5757927.
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    • Li, L., J. Yu, and J. Krolik. “Software-defined calibration for FMCW phased-array radar.” Ieee National Radar Conference  Proceedings, July 30, 2010, 877–81. https://doi.org/10.1109/RADAR.2010.5494498.
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    • Yu, J., M. Reynolds, and J. Krolik. “An indoor s-band radar receive array testbed.” Ieee National Radar Conference  Proceedings, July 30, 2010, 712–17. https://doi.org/10.1109/RADAR.2010.5494528.
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    • Hickman, G., and J. L. Krolik. “MIMO field directionality estimation using orientation-diverse linear arrays.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2009, 146–50. https://doi.org/10.1109/ACSSC.2009.5470146.
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    • Yu, J., and J. Krolik. “Multiband chirp synthesis for frequency-hopped FMCW radar.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2009, 1315–19. https://doi.org/10.1109/ACSSC.2009.5469920.
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    • Mecca, V. F., and J. L. Krolik. “MIMO enabled multipath clutter rank estimation.” Ieee National Radar Conference  Proceedings, September 11, 2009. https://doi.org/10.1109/RADAR.2009.4977137.
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    • Ramakrishnan, D., and J. Krolik. “Adaptive radar detection in doubly nonstationary autoregressive doppler spread clutter.” Ieee Transactions on Aerospace and Electronic Systems 45, no. 2 (July 20, 2009): 484–501. https://doi.org/10.1109/TAES.2009.5089536.
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    • Hickman, G., and J. L. Krolik. “A graph-theoretic approach to constrained floor plan estimation from radar measurements.” Ieee Transactions on Signal Processing 57, no. 5 (May 25, 2009): 1877–88. https://doi.org/10.1109/TSP.2009.2014815.
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    • Michaels, J. E., J. S. Hall, G. Hickman, and J. Krolik. “Sparse array imaging of change-detected ultrasonic signals by minimum variance processing.” Aip Conference Proceedings 1096 (May 12, 2009): 642–49. https://doi.org/10.1063/1.3114316.
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    • Krolik, J., V. Mecca, O. Kazanci, and I. Bilik. “Multipath spread-Doppler clutter mitigation for over-the-horizon radar.” 2008 Ieee Radar Conference, Radar 2008, December 1, 2008. https://doi.org/10.1109/RADAR.2008.4720844.
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    • Mecca, V. F., and J. L. Krolik. “MIMO STAP clutter mitigation performance demonstration using acoustic arrays.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2008, 634–38. https://doi.org/10.1109/ACSSC.2008.5074483.
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    • Rogers, J. S., and J. L. Krolik. “Passive broadband source localization in shallow-water multipath acoustic channels.” Oceans 2008, December 1, 2008. https://doi.org/10.1109/OCEANS.2008.5152051.
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    • Tao, H., G. Hickman, and J. Krolik. “Field directionality synthesis from multiple array orientations: A least squares approach.” Oceans 2008, December 1, 2008. https://doi.org/10.1109/OCEANS.2008.5151984.
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    • Goldhahn, Ryan, Granger Hickman, and Jeffrey Krolik. “Waveguide invariant broadband target detection and reverberation estimation.” The Journal of the Acoustical Society of America 124, no. 5 (November 2008): 2841–51. https://doi.org/10.1121/1.2980519.
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    • Bilik, I., O. Kazanci, and J. Krolik. “Radar clutter mitigation via space-time wavefront adaptive sensing.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, September 16, 2008, 2589–92. https://doi.org/10.1109/ICASSP.2008.4518178.
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    • Mecca, V. F., J. L. Krolik, and F. C. Robey. “Beamspace slow-time MIMO radar for multipath clutter mitigation.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, September 16, 2008, 2313–16. https://doi.org/10.1109/ICASSP.2008.4518109.
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    • Mecca, V. F., J. L. Krolik, F. C. Robey, and D. Ramakrishnan. “Slow-Time MIMO SpaceTime Adaptive Processing,” March 11, 2008, 283–318. https://doi.org/10.1002/9780470391488.ch7.
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    • Tao, Hailiang, and Jeffrey L. Krolik. “Waveguide invariant focusing for broadband beamforming in an oceanic waveguide.” The Journal of the Acoustical Society of America 123, no. 3 (March 2008): 1338–46. https://doi.org/10.1121/1.2832335.
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    • Bilik, I., O. Kazanci, and J. Krolik. “Wavefront adaptive sensing for radar spread clutter mitigation.” 2007 2nd Ieee International Workshop on Computational Advances in Multi Sensor Adaptive Processing, Campsap, December 1, 2007, 185–88. https://doi.org/10.1109/CAMSAP.2007.4497996.
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    • Kazanci, O., I. Bilik, and J. Krolik. “Wavefront adaptive raymode processing for over-the-horizon HF radar clutter mitigation.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2007, 2191–94. https://doi.org/10.1109/ACSSC.2007.4487629.
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    • Krolik, J. L., and G. Hickman. “A graph-theoretic approach for constraining floor plan estimation from radar measurements.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2007, 2228–34. https://doi.org/10.1109/ACSSC.2007.4487637.
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    • Mecca, V. F., and J. L. Krolik. “Slow-time MIMO STAP with improved power efficiency.” Conference Record  Asilomar Conference on Signals, Systems and Computers, December 1, 2007, 202–6. https://doi.org/10.1109/ACSSC.2007.4487195.
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    • Smith, S. M., J. Krolik, and I. Bilik. “Theoretical passive sonar performance of a cluster of UUV towed line arrays employing orientation diversity.” Oceans Conference Record (Ieee), December 1, 2007. https://doi.org/10.1109/OCEANS.2007.4449190.
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    • Goldhahn, R., G. Hickman, and J. L. Krolik. “Waveguide invariant reverberation mitigation for active sonar.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 2 (August 6, 2007). https://doi.org/10.1109/ICASSP.2007.366392.
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    • Tao, H., and J. L. Krolik. “Waveguide invariant focusing for broadband adaptive beamforming in a shallow water channel.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 2 (August 6, 2007). https://doi.org/10.1109/ICASSP.2007.366402.
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    • Liu, D., J. Krolik, and L. Carin. “Electromagnetic Target Detection in Uncertain Media: Time-Reversal and Minimum-Variance Algorithms.” Ieee Transactions on Geoscience and Remote Sensing 45, no. 4 (April 7, 2007): 934–44. https://doi.org/10.1109/TGRS.2006.890411.
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    • Liu, D., S. Vasudevan, J. Krolik, G. Bal, and L. Carin. “Electromagnetic time-reversal source localization in changing media: Experiment and analysis.” Ieee Transactions on Antennas and Propagation 55, no. 2 (February 1, 2007): 344–54. https://doi.org/10.1109/TAP.2006.889807.
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    • Bilik, I., and J. Krolik. “Comparative theoretical performance of maneuverable unmanned vehicles versus conventional towed-arrays for passive sonar.” Oceans 2007  Europe, January 1, 2007. https://doi.org/10.1109/oceanse.2007.4302319.
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    • Rogers, J. S., and J. L. Krolik. “A study of active sonar reverberation using ultrasonic experiments in a shallow-water tank.” Oceans 2007  Europe, January 1, 2007. https://doi.org/10.1109/oceanse.2007.4302358.
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    • Tao, H., G. Hickman, J. L. Krolik, and M. Kemp. “Single hydrophone passive localization of transiting acoustic sources.” Oceans 2007  Europe, January 1, 2007. https://doi.org/10.1109/oceanse.2007.4302377.
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    • Hickman, G., and J. Krolik. “Adaptive collaborative array trajectories for optimum passive detection.” Oceans 2006, December 1, 2006. https://doi.org/10.1109/OCEANS.2006.306888.
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    • Kazanci, O. R., and J. L. Krolik. “Single-snapshot beamformer performance using large arrays with faulty sensors.” 2006 Ieee Sensor Array and Multichannel Signal Processing Workshop Proceedings, Sam 2006, December 1, 2006, 6–10. https://doi.org/10.1109/SAM.2006.1677146.
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    • Krolik, J. L., J. Farrell, and A. Steinhardt. “Exploiting multipath propagation for GMTI in urban environments.” Ieee National Radar Conference  Proceedings, December 1, 2006, 65–68. https://doi.org/10.1109/RADAR.2006.1631777.
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    • Mecca, V. F., D. Ramakrishnan, and J. L. Krolik. “MIMO radar space-time adaptive processing for multipath clutter mitigation.” 2006 Ieee Sensor Array and Multichannel Signal Processing Workshop Proceedings, Sam 2006, December 1, 2006, 249–53. https://doi.org/10.1109/SAM.2006.1677197.
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    • Ramakrishnan, D., and J. Krolik. “Target detection in abruptly non-stationary Doppler-spread clutter.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 3 (December 1, 2006).
    • Smith, S. M., and J. Krolik. “Orientation diversity for an autonomous underwater vehicle cluster.” Oceans 2006, December 1, 2006. https://doi.org/10.1109/OCEANS.2006.306974.
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    • Krolik, J. L., J. Farrell, and A. Steinhardt. “Exploiting multipath propagation for GMTI in urban environments.” Cie International Conference of Radar Proceedings 2006 (November 21, 2006): 65–68.
    • Liao, Rui, Martin J. McKeown, and Jeffrey L. Krolik. “Isolation and minimization of head motion-induced signal variations in fMRI data using independent component analysis.” Magnetic Resonance in Medicine 55, no. 6 (June 2006): 1396–1413. https://doi.org/10.1002/mrm.20893.
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    • Varadarajan, V., and J. L. Krolik. “Joint space-time interpolation for distorted linear and bistatic array geometries.” Ieee Transactions on Signal Processing 54, no. 3 (March 1, 2006): 848–60. https://doi.org/10.1109/TSP.2005.862941.
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    • Kazanci, O. R., and J. L. Krolik. “Beamspace adaptive channel compensation for sensor arrays with faulty elements.” Conference Record  Asilomar Conference on Signals, Systems and Computers 2005 (December 1, 2005): 1316–19.
    • Liao, R., M. McKeown, and J. Krolik. “Improved motion correction of fMRI time-series corrupted with major head movement using extended motion-corrected independent component analysis.” Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) 3765 LNCS (December 1, 2005): 346–55. https://doi.org/10.1007/11569541_35.
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    • Tao, H., and J. Krolik. “Robust range-rate estimation of passive narrowband sources in shallow water.” Conference Record  Asilomar Conference on Signals, Systems and Computers 2005 (December 1, 2005): 1302–5.
    • Hickman, G., and J. Krolik. “Multipath delay estimation using the magnitude spectrum.” Ieee Workshop on Statistical Signal Processing Proceedings 2005 (January 1, 2005): 663–68. https://doi.org/10.1109/ssp.2005.1628677.
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    • Hickman, G., and J. Krolik. “Wide-band target depth estimation in a scattering ocean environment.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings IV (January 1, 2005): 1077–80. https://doi.org/10.1109/ICASSP.2005.1416199.
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    • Liao, Rui, Jeffrey L. Krolik, and Martin J. McKeown. “An information-theoretic criterion for intrasubject alignment of FMRI time series: motion corrected independent component analysis.” Ieee Transactions on Medical Imaging 24, no. 1 (January 2005): 29–44. https://doi.org/10.1109/tmi.2004.837791.
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    • Liu, D., G. Kang, L. Li, Y. Chen, S. Vasudevan, W. Joines, Q. H. Liu, J. Krolik, and L. Carin. “Electromagnetic time-reversal imaging of a target in a cluttered environment.” Ieee Transactions on Antennas and Propagation 53, no. 9 (2005): 3058–66. https://doi.org/10.1109/TAP.2005.854563.
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    • Varadarajan, V., and J. Krolik. “Target detection using dynamically reconfigurable sensor arrays.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings IV (January 1, 2005). https://doi.org/10.1109/ICASSP.2005.1416182.
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    • Krolik, J. L., P. Book, and S. Kraut. “Adaptive sonar detection performance when the signal wavefront and noise covariance are uncertain.” 2004 Sensor Array and Multichannel Signal Processing Workshop, December 1, 2004, 235–38.
    • Liao, R., M. J. McKeown, and J. L. Krolik. “Isolation and minimization of effects of motion on fMRI using multiple reference images.” 2004 2nd Ieee International Symposium on Biomedical Imaging: Macro to Nano 1 (December 1, 2004): 916–19.
    • Varadarajan, V., and J. Krolik. “Model-based space-time adaptive processing for active sonar.” Conference Record  Asilomar Conference on Signals, Systems and Computers 2 (December 1, 2004): 1431–35.
    • Liao, R., M. J. McKeown, and J. L. Krolik. “Motion-corrected independent component analysis for robust functional magnetic resonance imaging.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 2 (October 7, 2004).
    • Varadarajan, V., and J. Krolik. “Array shape estimation and tracking using active sonar reverberation.” Ieee Transactions on Aerospace and Electronic Systems 40, no. 3 (July 1, 2004): 1073–86. https://doi.org/10.1109/TAES.2004.1337475.
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    • Hickman, Granger, and Jeffrey L. Krolik. “Matched-field depth estimation for active sonar.” The Journal of the Acoustical Society of America 115, no. 2 (February 2004): 620–29. https://doi.org/10.1121/1.1634277.
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    • Kraut, S., R. H. Anderson, and J. L. Krolik. “A Generalized Karhunen-Loeve Basis for Efficient Estimation of Tropospheric Refractivity Using Radar Clutter.” Ieee Transactions on Signal Processing 52, no. 1 (January 1, 2004): 48–60. https://doi.org/10.1109/TSP.2003.820297.
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    • Gadwal, V., and J. Krolik. “A performance evaluation of autoregressive clutter mitigation methods for over-the-horizon radar.” Conference Record of the Asilomar Conference on Signals, Systems and Computers 1 (December 1, 2003): 937–41.
    • Kraut, S., and J. Krolik. “Passive source localization in the presence of near-endfire interference.” Conference Record of the Asilomar Conference on Signals, Systems and Computers 1 (December 1, 2003): 760–64.
    • Varadarajan, V., and J. Krolik. “Joint space-time interpolation for bistatic STAP.” Conference Record of the Asilomar Conference on Signals, Systems and Computers 1 (December 1, 2003): 60–65.
    • Varadarajan, V., and J. L. Krolik. “Space-time interpolation for adaptive arrays with limited training data.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (September 25, 2003): 353–56.
    • Anderson, R. H., S. Kraut, and J. L. Krolik. “Robust altitude estimation for over-the-horizon radar using a state-space multipath fading model.” Ieee Transactions on Aerospace and Electronic Systems 39, no. 1 (January 1, 2003): 192–201. https://doi.org/10.1109/TAES.2003.1188903.
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    • Gerstoft, Peter, L Ted Rogers, Jeffrey L. Krolik, and William S. Hodgkiss. “Inversion for refractivity parameters from radar sea clutter.” Radio Science 38, no. 3 (2003). https://doi.org/10.1029/2002RS002640.
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    • Anderson, R. H., and J. L. Krolik. “Track association for over-the-horizon radar with a statistical ionospheric model.” Ieee Transactions on Signal Processing 50, no. 11 (November 1, 2002): 2632–43. https://doi.org/10.1109/TSP.2002.804099.
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    • Tantum, Stacy L., Loren W. Nolte, Jeffrey L. Krolik, and Kerem Harmanci. “The performance of matched-field track-before-detect methods using shallow-water Pacific data.” The Journal of the Acoustical Society of America 112, no. 1 (July 2002): 119–27. https://doi.org/10.1121/1.1489435.
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    • Kraut, S., and J. Krolik. “Passive localization in range-rate of shallow-water moving targets, by sequential importance sampling.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 3 (January 1, 2002). https://doi.org/10.1109/icassp.2002.5745249.
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    • Vasudevan, S., R. Anderson, and J. L. Krolik. “MAP sequence estimation of microwave refractivity from radar clutter via a particle filtering implementation of the viterbi algorithm.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 3 (January 1, 2002). https://doi.org/10.1109/icassp.2002.5745247.
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    • Pentericci, L., Xiaohui Fan, H. -. W. Rix, M. A. Strauss, V. K. Narayanan, G. T. Richards, D. P. Schneider, et al. “VLT optical and near-infrared observations of the z=6.28 quasar SDSS J1030+0524.” Astron. J. (Usa) 123, no. 5 (2002): 2151–58. https://doi.org/10.1086/340077.
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    • Stoughton, C., R. H. Lupton, M. Bernardi, M. R. Blanton, S. Burles, F. J. Castander, A. J. Connolly, et al. “Sloan Digital Sky Survey: early data release.” Astron. J. (Usa) 123, no. 1 (2002): 485–548. https://doi.org/10.1086/324741.
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    • Anderson, R., S. Vasudevan, J. L. Krolik, and L. T. Rogers. “Maximum A posteriori refractivity estimation from radar clutter using a Markov model for microwave propagation.” International Geoscience and Remote Sensing Symposium (Igarss) 2 (December 1, 2001): 906–9.
    • Varadarajan, V., and J. L. Krolik. “Multichannel system identification methods for sensor array calibration in uncertain multipath environments.” Ieee Workshop on Statistical Signal Processing Proceedings, December 1, 2001, 297–300.
    • Anderson, R. H., S. Kraut, and J. L. Krolik. “Robust altitude estimation for over-the-horizon radar using a state-space model for multipath fading.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (September 26, 2001): 2901–4.
    • Vasudevan, S., and J. L. Krolik. “Refractivity estimation from radar clutter by sequential importance sampling with a Markov model for microwave propagation.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (September 26, 2001): 2905–8.
    • Menou, K., D. E. Vanden Berk, Z. Ivezic, R. S. J. Kim, G. R. Knapp, G. T. Richards, I. Strateva, et al. “Broad absorption line quasars in the Sloan Digital Sky Survey with VLA FIRST radio detections.” Astrophys. J. (Usa) 561, no. 2 (2001): 645–52. https://doi.org/10.1086/323218.
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    • Kraut, S., and J. Krolik. “Application of maximal invariance to the ACE detection problem.” Conference Record of the Asilomar Conference on Signals, Systems and Computers 1 (December 1, 2000): 417–20.
    • Harmanci, K., J. Tabrikian, and J. L. Krolik. “Relationships between adaptive minimum variance beamforming and optimal source localization.” Ieee Transactions on Signal Processing 48, no. 1 (January 1, 2000): 1–12. https://doi.org/10.1109/78.815474.
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    • Harmanci, K., and J. Krolik. “Adaptive temporal processing for equatorial spread Doppler clutter suppression.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (January 1, 2000): 3041–44. https://doi.org/10.1109/ICASSP.2000.861176.
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    • Kraut, S., and J. Krolik. “Optimal subspace selection for non-linear parameter estimation applied to refractivity from clutter.” Ieee Signal Processing Workshop on Statistical Signal and Array Processing, Ssap, January 1, 2000, 113–17.
    • Edelson, R., A. Koratkar, K. Nandra, M. Goad, B. M. Peterson, S. Collier, J. Krolik, et al. “Intensive HST, RXTE, and ASCA monitoring of NGC 3516: evidence against thermal reprocessing.” Astrophys. J. (Usa) 534, no. 1 (2000): 180–88. https://doi.org/10.1086/308752.
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    • Krolik, J. L., J. Tabrikian, S. Vasudevan, and L. T. Rogers. “Using radar sea clutter to estimate refractivity profiles associated with the capping inversion of the marine atmospheric boundary layer.” International Geoscience and Remote Sensing Symposium (Igarss) 1 (December 1, 1999): 649–51.
    • Rogers, L. T., C. P. Hattan, and J. L. Krolik. “Using radar sea echo to estimate surface layer refractivity profiles.” International Geoscience and Remote Sensing Symposium (Igarss) 1 (December 1, 1999): 658–62.
    • Tabrikian, J., and J. L. Krolik. “Barankin bounds for source localization in an uncertain ocean environment.” Ieee Transactions on Signal Processing 47, no. 11 (December 1, 1999): 2917–27. https://doi.org/10.1109/78.796428.
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    • Tabrikian, J., and J. L. Krolik. “Theoretical performance limits on tropospheric refractivity estimation using point-to-point microwave measurements.” Ieee Transactions on Antennas and Propagation 47, no. 11 (November 1, 1999): 1727–34. https://doi.org/10.1109/8.814953.
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    • Papazoglou, M., and J. L. Krolik. “Matched-field estimation of aircraft altitude from multiple over-the-horizon radar revisits.” Ieee Transactions on Signal Processing 47, no. 4 (April 1, 1999): 966–76. https://doi.org/10.1109/78.752595.
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    • Anderson, R., and J. Krolik. “Multipath track association for over-The-horizon radar using a bootstrapped statistical ionospheric model.” Conference Record of the 33rd Asilomar Conference on Signals, Systems, and Computers 1 (January 1, 1999): 8–14. https://doi.org/10.1109/ACSSC.1999.832287.
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    • Harmanci, K., and J. Krolik. “Matched window processing for mitigating over-the-horizon radar spread Doppler clutter.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (January 1, 1999): 2789–92. https://doi.org/10.1109/icassp.1999.761325.
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    • Tabrikian, J., and J. L. Krolik. “Efficient computation of the Bayesian Cramer-Rao bound on estimating parameters of Markov models.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 3 (January 1, 1999): 1761–64.
    • Agol, E., and J. Krolik. “Imaging a quasar accretion disk with microlensing.” Astrophys. J. (Usa) 524, no. 1 (1999): 49–64. https://doi.org/10.1086/307800.
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    • Hurt, T., R. Antonucci, R. Cohen, A. Kinney, and J. Krolik. “Ultraviolet imaging polarimetry of narrow-line radio galaxies.” Astrophys. J. (Usa) 514, no. 2 (1999): 579–86. https://doi.org/10.1086/306959.
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    • Gelenbe, E., K. Harmanci, and J. Krolik. “Learning neural networks for detection and classification of synchronous recurrent transient signals.” Signal Processing 64, no. 3 (February 26, 1998): 233–47. https://doi.org/10.1016/S0165-1684(97)00193-X.
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    • Anderson, R. H., and J. L. Krolik. “Over-the-horizon radar target localization using a hidden Markov model estimated from ionosonde data.” Radio Science 33, no. 4 (January 1, 1998): 1199–1213. https://doi.org/10.1029/98RS00476.
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    • Anderson, R. H., and J. L. Krolik. “The performance of maximum likelihood over-the-horizon radar coordinate registration.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 4 (January 1, 1998): 2481–84. https://doi.org/10.1109/ICASSP.1998.681654.
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    • Papazoglou, M., and J. L. Krolik. “Multi-dwell matched-field altitude estimation for over-the-horizon radar.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 4 (January 1, 1998): 2533–36. https://doi.org/10.1109/ICASSP.1998.681667.
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    • Agol, E., and J. Krolik. “Photon damping of waves in accretion disks.” Astrophys. J. (Usa) 507, no. 1 (1998): 304–15. https://doi.org/10.1086/306332.
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    • Krolik, J. L. “Maximum likelihood coordinate registration for over-the-horizon radar.” Ieee Transactions on Signal Processing 45, no. 4 (December 1, 1997): 945–59. https://doi.org/10.1109/78.564183.
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    • Czenszak, S. P., and J. L. Krolik. “Robust wideband matched-field processing with a short vertical array.” Journal of the Acoustical Society of America 101, no. 2 (February 1, 1997): 749–59. https://doi.org/10.1121/1.417958.
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    • Harmanci, K., and J. L. Krolik. “Robust beamformer weight design for broadband matched-field processing.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 1 (January 1, 1997): 471–74.
    • Papazoglou, M., and J. L. Krolik. “Electromagnetic matched-field processing for target height finding with over-the-horizon radar.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 1 (January 1, 1997): 559–62.
    • Tabrikian, J., J. L. Krolik, and H. Messer. “Robust maximum-likelihood source localization in an uncertain shallow- water waveguide.” Journal of the Acoustical Society of America 101, no. 1 (January 1, 1997): 241–49. https://doi.org/10.1121/1.417996.
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    • Tabrikian, J., and J. L. Krolik. “Barankin bound for source localization in shallow water.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 1 (January 1, 1997): 499–502.
    • Heckman, T. M., R. Gonzalez Delgado, C. Leitherer, G. R. Meurer, J. Krolik, A. S. Wilson, A. Koratkar, and A. Kinney. “A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection.” Astrophys. J. (Usa) 482, no. 1 (1997): 114–32. https://doi.org/10.1086/304139.
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    • Mahadevan, R., R. Narayan, and J. Krolik. “Gamma-Ray Emission From Advection-Dominated Accretion Flows Around Black Holes: Application to the Galactic Center.” Astrophysical Journal 486, no. 1 (1997): 268. https://doi.org/10.1086/304499.
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    • Krolik, J. L. “The performance of matched-field beamformers with mediterranean vertical array data.” Ieee Transactions on Signal Processing 44, no. 10 (December 1, 1996): 2605–11. https://doi.org/10.1109/78.539043.
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    • Krolik, J. L. “The Performance of Matched-Field Beanformers with Mediterranean Vertical Array Data.” Ieee Transactions on Signal Processing 44, no. 5 (December 1, 1996): 1320.
    • Krolik, J. L. “Robust matched-field beamforming with benchmark shallow-water acoustic array data.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 2 (January 1, 1996): 1185–88.
    • Krolik, J. L., and S. Narasimhan. “Performance bounds on acoustic thermometry of ocean climate in the presence of mesoscale sound-speed variability.” Journal of the Acoustical Society of America 99, no. 1 (January 1, 1996): 254–65. https://doi.org/10.1121/1.414536.
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    • Papazoglou, M., and J. L. Krolik. “High resolution adaptive beamforming for three-dimensional acoustic imaging of zooplankton.” Journal of the Acoustical Society of America 100, no. 6 (January 1, 1996): 3621–30. https://doi.org/10.1121/1.417225.
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    • Tabrikian, J., J. L. Krolik, and H. Messer. “Robust maximum likelihood source localization by exploiting predictable acoustic modes.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 6 (January 1, 1996): 3089–91.
    • Lasota, J. P., M. A. Abramowicz, X. Chen, and J. Krolik. “Is the Accretion Flow in NGC 4258 Advection Dominated?” Astrophysical Journal 462, no. 1 (1996): 142.
    • LIU, J. Y., and J. L. KROLIK. “THE SPATIAL CORRELATION OF ROUGH SEABED SCATTERING OF SURFACE-GENERATED AMBIENT NOISE (VOL 96, PG 2876, 1994).” Journal of the Acoustical Society of America 97, no. 5 (May 1995): 3198–3198. https://doi.org/10.1121/1.413088.
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    • Heckman, T., J. Krolik, G. Meurer, D. Calzetti, A. Kinney, A. Koratkar, C. Leitherer, C. Robert, and A. Wilson. “The nature of the ultraviolet continuum in type 2 Seyfert galaxies.” Astrophys. J. (Usa) 452, no. 2 (1995): 549–64.
    • Krolik, J. L., and S. Narasimhan. “Cramer-rao bound on acoustic measurement of ocean climate change in the presence of mesoscale sound-speed variability.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (January 1, 1995): 2771–74.
    • Narasimhan, S., and J. L. Krolik. “Fundamental limits on acoustic source range estimation performance in uncertain ocean channels.” Journal of the Acoustical Society of America 97, no. 1 (January 1, 1995): 215–26. https://doi.org/10.1121/1.412306.
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    • Edelson, R., J. Krolik, G. Madejski, L. Maraschi, G. Pike, C. M. Urry, W. Brinkmann, et al. “Multiwavelength monitoring of the BL Lacertae object PKS 2155-304. IV. Multiwavelength analysis.” Astrophys. J. (Usa) 438, no. 1 (1995): 120–34. https://doi.org/10.1086/175059.
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    • Jin-Yuan, L., and J. L. Krolik. “The Spatial Correlation Of Rough Seabed Scattering Of Surface-Generated Ambient Noise.” Journal of the Acoustical Society of America 96, no. 5 (January 1, 1994): 2876–86. https://doi.org/10.1121/1.411297.
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    • Krolik, J. L. “Sensor array processing performance evaluation via bootstrap resampling.” Journal of the Acoustical Society of America 95, no. 2 (January 1, 1994): 798–804. https://doi.org/10.1121/1.408390.
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    • Krolik, J. L., and D. N. Swingler. “On the Mean-Square Error Performance of Adaptive Minimum Variance Beamformers Based on the Sample Covariance Matrix.” Ieee Transactions on Signal Processing 42, no. 2 (January 1, 1994): 445–48. https://doi.org/10.1109/78.275625.
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    • Liu, J. Y., and J. L. Krolik. “Spatial correlation of rough seabed scattering of surface-generated ambient noise.” Journal of the Acoustical Society of America 96, no. 5 pt 1 (1994): 2876.
    • Niezgoda, G. H., and J. L. Krolik. “A Multiple Time Scale Modularized Adaptive Beamformer.” Ieee Transactions on Signal Processing 42, no. 5 (January 1, 1994): 1251–56. https://doi.org/10.1109/78.295189.
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    • Pier, E. A., R. Antonucci, T. Hurt, G. Kriss, and J. Krolik. “The intrinsic nuclear spectrum of NGC 1068.” Astrophys. J. (Usa) 428, no. 1 (1994): 124–29. https://doi.org/10.1086/174225.
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    • Krolik, J., C. Done, and G. Madejski. “X-ray light curves of active galactic nuclei are phase incoherent.” Astrophys. J. (Usa) 402, no. 2 (1993): 432–40. https://doi.org/10.1086/172148.
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    • Urry, C. M., L. Maraschi, R. Edelson, A. Koratkar, J. Krolik, G. Madejski, E. Pian, et al. “Multiwavelength monitoring of the BL Lacertae object PKS 2155-304. I. The IUE campaign.” Astrophys. J. (Usa) 411, no. 2 (1993): 614–31. https://doi.org/10.1086/172864.
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    • Krolik, J. L. “Matched-field minimum variance beamforming in a random ocean channel.” Journal of the Acoustical Society of America 92, no. 3 (October 14, 1992): 1408–19. https://doi.org/10.1121/1.403935.
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    • Krolik, J., and D. Swingler. “Cross-talk artifacts in spatial spectrum estimation with a sensor array.” Journal of the Acoustical Society of America 92, no. 1 (January 1, 1992): 238–43. https://doi.org/10.1121/1.404287.
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    • Krolik, J. L., and W. S. Hodgkiss. “Matched field source localization in an uncertain environment using constraints based on sound-speed perturbations.” Oceans Conference Record (Ieee) 2 (December 1, 1991): 771–78.
    • Niezgoda, G. H., J. Krolik, and E. Plotkin. “Broadband source localization in a slowly time-varying environment by multichannel Kalman filtering.” Ieee Pacific Rim Conference on Communications, Computers and Signal Processing. Conference Proceedings, December 1, 1991, 787–90.
    • Krolik, J., G. Niezgoda, and D. Swingler. “A bootstrap approach for evaluating source localization performance on real sensor array data.” Proceedings  Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing 2 (January 1, 1991): 1281–84. https://doi.org/10.1109/icassp.1991.150632.
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    • Krolik, J., and D. Swingler. “The Performance of Minimax Spatial Resampling Filters for Focusing Wide-Band Arrays.” Ieee Transactions on Signal Processing 39, no. 8 (January 1, 1991): 1899–1903. https://doi.org/10.1109/78.91162.
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    • Niezgoda, G. H., and J. Krolik. “The application of adaptive multichannel spectral estimation for broadband array processing.” Proceedings  Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing 2 (January 1, 1991): 1397–1400. https://doi.org/10.1109/icassp.1991.150688.
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    • Krolik, J., and D. Swingler. “The detection performance of coherent wideband focusing for a spatially resampled array.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 5 (December 1, 1990): 2827–30.
    • Krolik, J., and D. Swingler. “Focused Wide-Band Array Processing by Spatial Resampling.” Ieee Transactions on Acoustics, Speech, and Signal Processing 38, no. 2 (January 1, 1990): 356–60. https://doi.org/10.1109/29.103073.
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    • Krolik, J., J. Lynch, and D. Swingler. “Robust incoherent matched field processor for source localization in uncertain multipath fields.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 4 (December 1, 1989): 2637–40.
    • Krolik, J., and D. Swingler. “Focussed partially adaptive broadband beamforming via spatial resampling,” December 1, 1989, 117–18.
    • Swingler, D. N., R. S. Walker, and J. Krolik. “Implementation considerations for a doubly-steered, coherently-focussed high-resolution broadband beamformer for source location estimation.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 4 (December 1, 1989): 2589–92.
    • Krolik, J., and D. Swingler. “Multiple Broad-Band Source Location Using Steered Covariance Matrices.” Ieee Transactions on Acoustics, Speech, and Signal Processing 37, no. 10 (January 1, 1989): 1481–94. https://doi.org/10.1109/29.35386.
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    • Swingler, D. N., and J. Krolik. “Source Location Bias In The Coherently Focused High-Resolution Broadband Beamformer.” Ieee Transactions on Acoustics, Speech, and Signal Processing 37, no. 1 (January 1, 1989): 143–45. https://doi.org/10.1109/29.17516.
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    • Krolik, J., D. N. Swingler, and R. S. Walker. “Dominant-mode steered linear prediction for high resolution broadband source location,” December 1, 1988, 28–32.
    • Krolik, J., M. Eizenman, and S. Pasupathy. “Time Delay Estimation of Signals with Uncertain Spectra.” Ieee Transactions on Acoustics, Speech, and Signal Processing 36, no. 12 (January 1, 1988): 1801–11. https://doi.org/10.1109/29.9025.
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    • Krolik, J., and M. Eizenman. “MINIMUM VARIANCE SPECTRAL ESTIMATION FOR BROADBAND SOURCE LOCATION USING STEERED COVARIANCE MATRICES.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, January 1, 1988, 2841–44.
    • Swingler, D. N., R. S. Walker, and J. Krolik. “HIGH-RESOLUTION BROADBAND BEAMFORMING USING A DOUBLY-STEERED COHERENT SIGNAL-SUBSPACE APPROACH.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, January 1, 1988, 2658–61.
    • Leib, H., M. Eizenman, S. Pasupathy, and J. Krolik. “Adaptive Lattice Filter for Multiple Sinusoids in White Noise.” Ieee Transactions on Acoustics, Speech, and Signal Processing 35, no. 7 (January 1, 1987): 1015–23. https://doi.org/10.1109/TASSP.1987.1165227.
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    • Krolik, J., M. Eizenman, and S. Pasupathy. “TIME DELAY ESTIMATION VIA GENERALIZED CORRELATION WITH ADAPTIVE SPATIAL PREFILTERING.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, December 1, 1986, 1893–96.
    • Krolik, J., M. Eizenman, and S. Pasupathy. “APPLICATION OF THE LMS ADAPTIVE LINE ENHANCER IN TIME DELAY ESTIMATION.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, December 1, 1985, 1766–69.
    • Krolik, J., M. Eizenman, and S. Pasupathy. “Constrained time delay estimation via zero-crossing methods.” Adaptive Methods in Underwater Acoustics. Proceedings of the Nato Advanced Study Institute, 1985, 207–16.
    • Krolik, J., M. Joy, S. Pasupathy, and M. Eizenman. “COMPARATIVE STUDY OF THE LMS ADAPTIVE FILTER VERSUS GENERALIZED CORRELATION METHODS FOR TIME DELAY ESTIMATION.” Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings 1 (January 1, 1984).
    • Shorey, J. A., L. W. Nolte, and J. L. Krolik. “Computationally efficient Monte Carlo estimation algorithms for matched field processing in uncertain ocean environments.” J. Comput. Acoust. (Singapore) 2, no. 3 (n.d.): 285–314.
    • Agol, E., J. Krolik, N. J. Turner, and J. M. Stone. “Two-dimensional hydrodynamic simulations of convection in radiation-dominated accretion disks.” Astrophys. J. (Usa) 558, no. 2 (n.d.): 543–52. https://doi.org/10.1086/322277.
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    • Gonzalez Delgado, R. M., T. Heckman, C. Leitherer, G. Meurer, J. Krolik, A. S. Wilson, A. Kinney, and A. Koratkar. “Ultraviolet-optical observations of the Seyfert 2 galaxies NGC 7130, NGC 5135, and IC 3639: implications for the starburst-active galactic nucleus connection.” Astrophys. J. (Usa) 505, no. 1 (n.d.): 174–98. https://doi.org/10.1086/306154.
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    • Hero, A., H. Messer, J. Goldberg, D. J. Thomson, M. G. Amin, G. Giannakis, A. Swami, et al. “Highlights of statistical signal and array processing.” Ieee Signal Process. Mag. (Usa) 15, no. 5 (n.d.): 21–64. https://doi.org/10.1109/79.708539.
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  • Book Sections

    • Xu, C., and J. Krolik. “Multiple-input multiple-output radar for monitoring of bed-ridden patients.” In Radar for Indoor Monitoring: Detection, Classification, and Assessment, 227–60, 2017. https://doi.org/10.1201/9781315155340.
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    • Tabrikian, J., and J. L. Krolik. “Barankin bounds for source localization in an uncertain ocean environment.” In Bayesian Bounds for Parameter Estimation and Nonlinear Filtering/Tracking, 529–39, 2007. https://doi.org/10.1109/9780470544198.ch47.
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    • Tabrikian, J., and J. L. Krolik. “Efficient computation of the bayesian cramerrao bound on estimating parameters of markov models.” In Bayesian Bounds for Parameter Estimation and Nonlinear Filtering/Tracking, 371–74, 2007. https://doi.org/10.1109/9780470544198.ch32.
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  • Conference Papers

    • Ganti, A., and J. Krolik. “Sampling Rate Offset Estimation in Acoustic Sensor Networks.” In Ieee Workshop on Statistical Signal Processing Proceedings, 2021-July:436–40, 2021. https://doi.org/10.1109/SSP49050.2021.9513831.
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    • Zhang, J., Y. Huang, H. Yang, M. Martinez, G. Hickman, J. Krolik, and H. Li. “Efficient FPGA Implementation of a Convolutional Neural Network for Radar Signal Processing.” In 2021 Ieee 3rd International Conference on Artificial Intelligence Circuits and Systems, Aicas 2021, 2021. https://doi.org/10.1109/AICAS51828.2021.9458573.
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    • Centers, J., and J. Krolik. “Vibrational Radar Backscatter Communications.” In Conference Record  Asilomar Conference on Signals, Systems and Computers, 2021-October:1086–90, 2021. https://doi.org/10.1109/IEEECONF53345.2021.9723226.
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    • Ganti, A., and J. Krolik. “Adaptive Beamforming with a Partially Calibrated Distributed Array.” In Conference Record  Asilomar Conference on Signals, Systems and Computers, 2021-October:199–203, 2021. https://doi.org/10.1109/IEEECONF53345.2021.9723125.
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    • Ganti, A., and J. Krolik. “ESPRIT-based Calibration of Multiple Sonobuoys Using a Moving Source.” In 2020 Global Oceans 2020: Singapore  U.S. Gulf Coast, 2020. https://doi.org/10.1109/IEEECONF38699.2020.9389064.
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    • Cnaan-On, I., A. Harms, J. L. Krolik, and A. R. Calderbank. “Run-length limited codes for backscatter communication.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 6110–14, 2017. https://doi.org/10.1109/ICASSP.2017.7953330.
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    • Ramirez, J., N. Bottenus, G. Trahey, and J. L. Krolik. “Synthetic aperture imaging with thinned linear sensor arrays for medical ultrasound.” In Proceedings of the Ieee Sensor Array and Multichannel Signal Processing Workshop, Vol. 2016-September, 2016. https://doi.org/10.1109/SAM.2016.7569640.
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    • Harms, A., J. L. Odom, and J. L. Krolik. “Ocean acoustic waveguide invariant parameter estimation using tonal noise sources.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 2015-August:4001–4, 2015. https://doi.org/10.1109/ICASSP.2015.7178722.
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    • Ramirez, J., and J. Krolik. “Multiple source localization with moving co-prime arrays.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 2015-August:2374–78, 2015. https://doi.org/10.1109/ICASSP.2015.7178396.
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    • Xu, C., and J. Krolik. “Space-delay adaptive processing for MIMO RF indoor motion mapping.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 2015-August:2349–53, 2015. https://doi.org/10.1109/ICASSP.2015.7178391.
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    • Li, L., and J. L. Krolik. “Target tracking in uncertain Multipath Environment using distributed Angle-of-Arrival observation.” In Ieee National Radar Conference  Proceedings, 2015-June:1473–78, 2015. https://doi.org/10.1109/RADAR.2015.7131228.
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    • Li, L., and J. L. Krolik. “CRLB performance for bistatic MIMO radar.” In Ieee National Radar Conference  Proceedings, 2015-June:1468–72, 2015. https://doi.org/10.1109/RADAR.2015.7131227.
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    • Hickman, G., and J. L. Krolik. “Non-recurrent wideband continuous active sonar.” In Oceans 2012 Mts/Ieee: Harnessing the Power of the Ocean, 2012. https://doi.org/10.1109/OCEANS.2012.6405101.
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    • Odom, J. L., and J. L. Krolik. “Time-varying array shape estimation by mapping acoustic field directionality.” In Oceans 2012 Mts/Ieee: Harnessing the Power of the Ocean, 2012. https://doi.org/10.1109/OCEANS.2012.6404977.
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    • Tabrikian, J., J. L. Krolik, and S. Vasudevan. “Estimating tropospheric refractivity parameters from radar sea clutter.” In Proceedings of the Ieee Signal Processing Workshop on Higher Order Statistics, Spw Hos 1999, 345–48, 1999. https://doi.org/10.1109/HOST.1999.778755.
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    • Narasimhan, S., and J. L. Krolik. “A Cramer-Rao bound for source range estimation in a random ocean waveguide.” In Ieee 7th Sp Workshop on Statistical Signal and Array Processing, Ssap 1994  Proceedings, 309–12, 1994. https://doi.org/10.1109/SSAP.1994.572505.
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    • Niezgoda, G. H., and J. L. Krolik. “A multiple time scale minimum variance beamformer.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 4:364–67, 1993. https://doi.org/10.1109/ICASSP.1993.319670.
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    • Niezgoda, G. H., and J. Krolik. “The application of Laguerre partial series expansions for broadband array processing.” In Icassp, Ieee International Conference on Acoustics, Speech and Signal Processing  Proceedings, 2:501–4, 1992. https://doi.org/10.1109/ICASSP.1992.226010.
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• Teaching & Mentoring
• 

  Recent Courses

  • ECE 485: Digital Audio and Acoustic Signal Processing 2022
  • ECE 485: Digital Audio and Acoustic Signal Processing 2021
  • ECE 493: Projects in Electrical and Computer Engineering 2021
  • ECE 485: Digital Audio and Acoustic Signal Processing 2020
  • ECE 688: Sensor Array Signal Processing 2020

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