Compressive radar imaging using white stochastic waveforms

Mahesh C. Shastry, Ram Mohan Narayanan, Muralidhar Rangaswamy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

24 Scopus citations

Abstract

In this paper, we apply the principles of compressive sampling to ultra-wideband (UWB) stochastic waveform radar. The theory of compressive sampling says that it is possible to recover a signal that is parsimonious when represented in a particular basis, by acquiring few projections on to an appropriate basis set. Drawing on literature in compressive sampling, we develop the theory behind stochastic waveform-based compressive imaging. We show that using stochastic waveforms for radar imaging, it is possible to estimate target parameters and detect targets by sampling at a rate that is considerably slower than the Nyquist rate and recovering using compressive sensing algorithms. Thus, it is theoretically possible to increase the bandwidth (and hence the spatial resolution) of an ultra-wideband radar system using stochastic waveforms, without significant additions to the data acquisition system. Further, there is virtually no degradation in the performance of a UWB stochastic waveform radar system that employs compressive sampling. We present numerical simulations to show that the performance guarantees provided by theoretical results are achieved in realistic scenarios.

Original languageEnglish (US)
Title of host publication2010 International Waveform Diversity and Design Conference, WDD 2010
Pages90-94
Number of pages5
DOIs
StatePublished - Nov 22 2010
Event2010 5th International Waveform Diversity and Design Conference, WDD 2010 - Niagara Falls, ON, Canada
Duration: Aug 8 2010Aug 13 2010

Publication series

Name2010 International Waveform Diversity and Design Conference, WDD 2010

Other

Other2010 5th International Waveform Diversity and Design Conference, WDD 2010
CountryCanada
CityNiagara Falls, ON
Period8/8/108/13/10

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All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Shastry, M. C., Narayanan, R. M., & Rangaswamy, M. (2010). Compressive radar imaging using white stochastic waveforms. In 2010 International Waveform Diversity and Design Conference, WDD 2010 (pp. 90-94). [5592367] (2010 International Waveform Diversity and Design Conference, WDD 2010). https://doi.org/10.1109/WDD.2010.5592367