Efficient linear time-varying system identification using chirp waveforms
Publication
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Harms, A; Bajwa, W; Calderbank, R
Published in: Conference Record - Asilomar Conference on Signals, Systems and Computers
April 24, 2015
Linear, time-varying (LTV) systems are operators composed of time shifts, frequency shifts, and complex amplitude scalings that act on continuous finite-energy waveforms. This paper builds upon a novel, resource-efficient method previously proposed by the authors for identifying the parametric description of such systems from the sampled response to linear frequency modulated (LFM) waveforms. If the LTV operator is probed with a sufficiently diverse set of LFM pulses, more LFM pulses than reflectors, then the system can be identified with high accuracy. The accuracy is shown to be proportional to the uncertainty in the estimated frequencies and confirmed with numerical experiments.
Duke Scholars
Published In
Conference Record - Asilomar Conference on Signals, Systems and Computers
DOI
ISSN
1058-6393
Publication Date
April 24, 2015
Volume
2015-April
Start / End Page
854 / 858
Citation
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ICMJE
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Harms, A., Bajwa, W., & Calderbank, R. (2015). Efficient linear time-varying system identification using chirp waveforms. In Conference Record - Asilomar Conference on Signals, Systems and Computers (Vol. 2015-April, pp. 854–858). https://doi.org/10.1109/ACSSC.2014.7094572
Harms, A., W. Bajwa, and R. Calderbank. “Efficient linear time-varying system identification using chirp waveforms.” In Conference Record - Asilomar Conference on Signals, Systems and Computers, 2015-April:854–58, 2015. https://doi.org/10.1109/ACSSC.2014.7094572.
Harms A, Bajwa W, Calderbank R. Efficient linear time-varying system identification using chirp waveforms. In: Conference Record - Asilomar Conference on Signals, Systems and Computers. 2015. p. 854–8.
Harms, A., et al. “Efficient linear time-varying system identification using chirp waveforms.” Conference Record - Asilomar Conference on Signals, Systems and Computers, vol. 2015-April, 2015, pp. 854–58. Scopus, doi:10.1109/ACSSC.2014.7094572.
Harms A, Bajwa W, Calderbank R. Efficient linear time-varying system identification using chirp waveforms. Conference Record - Asilomar Conference on Signals, Systems and Computers. 2015. p. 854–858.
Published In
Conference Record - Asilomar Conference on Signals, Systems and Computers
DOI
ISSN
1058-6393
Publication Date
April 24, 2015
Volume
2015-April
Start / End Page
854 / 858