Efficient linear time-varying system identification using chirp waveforms


Conference Paper

© 2014 IEEE. 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.

Full Text

Duke Authors

Cited Authors

  • Harms, A; Bajwa, W; Calderbank, R

Published Date

  • April 24, 2015

Published In

Volume / Issue

  • 2015-April /

Start / End Page

  • 854 - 858

International Standard Serial Number (ISSN)

  • 1058-6393

International Standard Book Number 13 (ISBN-13)

  • 9781479982974

Digital Object Identifier (DOI)

  • 10.1109/ACSSC.2014.7094572

Citation Source

  • Scopus