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 journalArticlepeer-review

    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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