Moving target estimation using distributed MIMO radar in non-homogeneous clutter

Pu Wang, Hongbin Li, Braham Himed

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

5 Scopus citations

Abstract

In this paper, we consider parameter estimation for moving target detection using a distributed MIMO radar, where the multistatic transmit-receive configuration causes non-homogeneous clutter. Specifically, the clutter power for the same resolution cell may vary significantly from one transmit-receive pair to another, due to azimuthselective backscattering. Moreover, the clutter power may also vary across resolution cells in the neighborhood of the test cell. In this work, the nonhomogeneous clutter is modeled using a subspace approach, whereby the subspace is spanned by a few Fourier bases and the non-homogeneity of the clutter is captured by coefficients that vary with different transmitreceive pairs and/or different resolution cells. The choice of the Fourier bases is based the fact that the clutter Doppler spectrum is bandlimited. We develop a maximum likelihood (ML) estimator for the parameters associated with the target and clutter. The Cramér-Rao bound (CRB) for velocity estimation is also derived. Numerical results show that the proposed estimator outperforms an alternative solution that ignores the non-homogeneous nature of the clutter.

Original languageEnglish
Title of host publication4th Microwave and Radar Week MRW-2010 - 11th International Radar Symposium, IRS 2010 - Conference Proceedings
Pages186-189
Number of pages4
StatePublished - 2010
Event4th Microwave and Radar Week MRW-2010 - 11th International Radar Symposium, IRS 2010 - Vilnius, Lithuania
Duration: 16 Jun 201018 Jun 2010

Publication series

Name4th Microwave and Radar Week MRW-2010 - 11th International Radar Symposium, IRS 2010 - Conference Proceedings

Conference

Conference4th Microwave and Radar Week MRW-2010 - 11th International Radar Symposium, IRS 2010
Country/TerritoryLithuania
CityVilnius
Period16/06/1018/06/10

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