Covariance matrix synthesis using maximum ratio combining in coherent mimo radar with frequency diversity

Hyeonmu Jeon, Yongseek Chung, Wonzoo Chung, Jongmann Kim, Hoongee Yang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Reliable detection and parameter estimation of a radar cross section(RCS) fluctuating target have been known as a difficult task. To reduce the effect of RCS fluctuation, various diversity techniques have been considered. This paper presents a new method for synthesizing a covariance matrix applicable to a coherent multi-input multi-output(MIMO) radar with frequency diversity. It is achieved by efficiently combining covariance matrices corresponding to different carrier frequencies such that the signal-to-noise ratio(SNR) in the combined covariance matrix is maximized. The value of a synthesized covariance matrix is assessed by examining the phase curves of its entries and the improvement on direction of arrival(DOA) estimation.

Original languageEnglish
Pages (from-to)51-459
Number of pages409
JournalJournal of Electrical Engineering and Technology
Volume13
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1

Keywords

  • Covariance matrix
  • DOA
  • Frequency diversity
  • MIMO
  • Multicarrier
  • RCS

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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