Phase Synchronization for MIMO Radars in the Absence of Channel Reciprocity

Kwanggoo YEO; Hyuk-soo SHIN; Hoon-gee YANG; Young-seek CHUNG; Myung-deuk JEONG; Wonzoo CHUNG

doi:10.1587/transfun.E97.A.1130

Regular Section

Phase Synchronization for MIMO Radars in the Absence of Channel Reciprocity

Kwanggoo YEO, Hyuk-soo SHIN, Hoon-gee YANG, Young-seek CHUNG, Myung-deuk JEONG, Wonzoo CHUNG

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Keywords: phase synchronization, MIMO radar, MLE, channel reciprocity

JOURNAL RESTRICTED ACCESS

2014 Volume E97.A Issue 5 Pages 1130-1135

DOI https://doi.org/10.1587/transfun.E97.A.1130

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Abstract

This letter presents a novel phase synchronization algorithm for a MIMO radar system in order to overcome the limitation of the existing algorithms relying on channel reciprocity, or line-of-sight, assumption between radar elements. The proposed algorithm is capable of synchronizing local oscillator phases among radar elements even if line-of-sight communication links are not available. Furthermore, the proposed algorithm exhibits robust MSE performance in the presence of frequency estimation error. The performance of the proposed algorithm was analyzed theoretically and verified by simulations.

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