MIMO radar using compressive sampling

Yao Yu, Athina P. Petropulu, H. Vincent Poor

Research output: Contribution to journalArticle

232 Scopus citations

Abstract

A multiple-input multiple-output (MIMO) radar system is proposed for obtaining angle and Doppler information on potential targets. Transmitters and receivers are nodes of a small scale wireless network and are assumed to be randomly scattered on a disk. The transmit nodes transmit uncorrelated waveforms. Each receive node applies compressive sampling to the received signal to obtain a small number of samples, which the node subsequently forwards to a fusion center. Assuming that the targets are sparsely located in the angle-Doppler space, based on the samples forwarded by the receive nodes the fusion center formulates an ℓ1-optimization problem, the solution of which yields target angle and Doppler information. The proposed approach achieves the superior resolution of MIMO radar with far fewer samples than required by other approaches. This implies power savings during the communication phase between the receive nodes and the fusion center. Performance in the presence of a jammer is analyzed for the case of slowly moving targets. Issues related to forming the basis matrix that spans the angle-Doppler space, and for selecting a grid for that space are discussed. Extensive simulation results are provided to demonstrate the performance of the proposed approach at difference jammer and noise levels.

Original languageEnglish (US)
Article number5393285
Pages (from-to)146-163
Number of pages18
JournalIEEE Journal on Selected Topics in Signal Processing
Volume4
Issue number1
DOIs
StatePublished - Feb 1 2010

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering

Keywords

  • Compressive sampling (CS)
  • Direction of arrival (DOA) estimation
  • Doppler estimation
  • Multiple-input multiple-output (MIMO) radar

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