Practical radar compressive sampling system via slow-time dimensional processing

X. Li, T. Yu, R. X. Wang, P. F. Shi, H. Huan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Compressive sampling provides an effective undersampling method for Radar signal processing. Conventional radar compressive sampling system uses waveformmatched sparse dictionary to process undersampling and pulse compressing simultaneously. Such system's lowest sample number is nearly proportional to the sparsity of reconstructed signal, which is equal to the number of targets in echo signal. However, in practical applications, clutters in signal will increase the sparsity of reconstructed signal seriously. In this paper we proposes a practical radar signal compressive sampling method via slow-time dimensional MTI clutter pre-suppression and MTD coherent pre-accumulation. The performance degradation of conventional radar compressive sampling system caused by clutters has been analyzed. We prove that the reconstructed signal of compressive sampled signal after MTI&MTD processing is same as a Nyquist sampled signal after pulse compressing and MTI&MTD processing. Theoretical analyses and simulations verify that the proposed compressive sampling system via slow-time dimensional processing is a valid system to undersample the radar echo signals in clutter environment.

Original languageEnglish
Title of host publicationIET Conference Publications
PublisherInstitution of Engineering and Technology
EditionCP677
ISBN (Print)9781785610387
DOIs
Publication statusPublished - 2015
EventIET International Radar Conference 2015 - Hangzhou, China
Duration: 14 Oct 201516 Oct 2015

Publication series

NameIET Conference Publications
NumberCP677
Volume2015

Conference

ConferenceIET International Radar Conference 2015
Country/TerritoryChina
CityHangzhou
Period14/10/1516/10/15

Keywords

  • Clutter pre-suppression
  • Coherent pre-accumulation
  • Compressive sampling radar
  • Slow-time dimension

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