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A parameter transformation for improved decay rate estimation

Publication ,  Conference
Tantum, SL; Collins, LM
Published in: Proceedings of SPIE - The International Society for Optical Engineering
January 1, 2002

Decay rate estimation has been proposed as an effective method for landmine and unexploded ordnance (UXO) detection and discrimination when electromagnetic induction (EMI) sensors are employed. The phenomenological basis for this strategy is that every object in the target library (i.e., landmine and/or UXO target) possesses a unique set of decay rates that are dependent upon the physical characteristics of the target of interest. In theory, these decay rates can be estimated from the measured EMI response and then utilized for target detection and subsequent discrimination and/or classification. Since the basis for this approach to target detection and identification is that targets are uniquely characterized by their decay rates, discrimination performance is dependent upon decay rate estimation performance. Unfortunately, decay rate estimation is notoriously difficult, and this difficulty adversely impacts target discrimination performance. We propose a parameter transformation to improve both the accuracy and the robustness of decay rate estimation when the decay rates are estimated using nonlinear least squares techniques. We present simulation results showing the improvement in the both the RMS error and the bias of the estimates achieved with the parameter transformation.

Duke Scholars

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

January 1, 2002

Volume

4742

Issue

II

Start / End Page

812 / 820

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering
 

Citation

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MLA
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Tantum, S. L., & Collins, L. M. (2002). A parameter transformation for improved decay rate estimation. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4742, pp. 812–820). https://doi.org/10.1117/12.479154
Tantum, S. L., and L. M. Collins. “A parameter transformation for improved decay rate estimation.” In Proceedings of SPIE - The International Society for Optical Engineering, 4742:812–20, 2002. https://doi.org/10.1117/12.479154.
Tantum SL, Collins LM. A parameter transformation for improved decay rate estimation. In: Proceedings of SPIE - The International Society for Optical Engineering. 2002. p. 812–20.
Tantum, S. L., and L. M. Collins. “A parameter transformation for improved decay rate estimation.” Proceedings of SPIE - The International Society for Optical Engineering, vol. 4742, no. II, 2002, pp. 812–20. Scopus, doi:10.1117/12.479154.
Tantum SL, Collins LM. A parameter transformation for improved decay rate estimation. Proceedings of SPIE - The International Society for Optical Engineering. 2002. p. 812–820.

Published In

Proceedings of SPIE - The International Society for Optical Engineering

DOI

ISSN

0277-786X

Publication Date

January 1, 2002

Volume

4742

Issue

II

Start / End Page

812 / 820

Related Subject Headings

  • 5102 Atomic, molecular and optical physics
  • 4009 Electronics, sensors and digital hardware
  • 4006 Communications engineering