Recursive moving target detection with distributed MIMO radar in clutter with non-homogeneous power

Pu Wang, Hongbin Li, Braham Himed

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

1 Scopus citations

Abstract

Our previous study addresses moving target detection (MTD) using a distributed multiple-input multiple-output (MIMO) radar in clutter with non-homogeneous power. The developed detector, referred to as the MIMO-GLRT detector, assumes perfect knowledge of the clutter subspace and uses the assumed clutter subspace to construct a projection matrix which is required to compute the test statistic. In this work, we take into account uncertainties on the clutter subspace, i.e., the subspace dimension is not known a priori, and develop a recursive version of the MIMO-GLRT detector by integrating a computationally efficient updating algorithm for the subspace projection matrix from one iteration to another, together with a generalized Akaike Information criterion (GAIC) for the subspace dimension selection. Simulation results with a synthesized dataset and a general clutter dataset are provided to demonstrate the performance degradation of the standard MIMO-GLRT detector when an over-estimated or under-estimated clutter subspace is used, and show that the recursive MIMO-GLRT detector is able to mitigate such degradation by choosing a proper clutter subspace directly from the received signals.

Original languageEnglish
Title of host publication2012 IEEE Radar Conference
Subtitle of host publicationUbiquitous Radar, RADARCON 2012 - Conference Program
Pages504-509
Number of pages6
DOIs
StatePublished - 2012
Event2012 IEEE Radar Conference: Ubiquitous Radar, RADARCON 2012 - Atlanta, GA, United States
Duration: 7 May 201211 May 2012

Publication series

NameIEEE National Radar Conference - Proceedings
ISSN (Print)1097-5659

Conference

Conference2012 IEEE Radar Conference: Ubiquitous Radar, RADARCON 2012
Country/TerritoryUnited States
CityAtlanta, GA
Period7/05/1211/05/12

Keywords

  • Distributed MIMO radar
  • generalized likelihood ratio test
  • model order selection
  • moving target detection
  • non-homogeneous clutter

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