MIMO Radar - Diversity Means Superiority

Abstract

We consider a multiple-input multiple-output (MIMO) radar system where both the transmitter and receiver have multiple well-separated subarrays with each subarray containing closely-spaced antennas. Because of this general antenna configuration, both the coherent processing gain and the spatial diversity gain can be simultaneously achieved. We compare several spatial spectral estimators, including Capon and APES, for target detection and parameter estimation. We introduce a generalized likelihood ratio test (GLRT) and a conditional generalized likelihood ratio test (cGLRT) for the general antenna configuration. Based on GLRT and cGLRT, we then propose an iterative GLRT (iGLRT) procedure for target detection and parameter estimation. Via several numerical examples, we show that iGLRT can provide excellent detection and estimation performance at a low computational cost.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2007
Accession Number
ADA473965

Entities

People

  • Jiantao Li

Organizations

  • University of Florida

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Antenna Configurations
  • Antennas
  • Arrays
  • Covariance
  • Detection
  • Estimators
  • High Resolution
  • Military Research
  • Mimo Radar
  • Multiple Input Multiple Output
  • Multiple Targets
  • Phased Arrays
  • Probability
  • Radar
  • Radar Cross Sections
  • Target Detection

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Statistical inference.

Technology Areas

  • Space
  • Space - Space Objects