DOA and DOD Estimation Using Orthogonal Projection Approach for Bistatic MIMO Radars

Ann-Chen CHANG  Chih-Chang SHEN  Kai-Shiang CHANG  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E97-A   No.5   pp.1121-1124
Publication Date: 2014/05/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E97.A.1121
Type of Manuscript: LETTER
Category: Digital Signal Processing
radar,  angle estimation,  multiple-input multiple-output (MIMO),  orthogonal projection,  reduced-dimension,  polynomial rooting,  

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In this letter, the orthogonal projection (OP) estimation of the direction of arrival (DOA) and direction of departure (DOD) of multiple targets for bistatic multiple-input multiple-output radars is addressed. First, a two-dimensional direction finding estimator based on OP technique with automatic pairing is developed. Second, this letter also presents a modified reduced-dimension estimator by utilizing the characteristic of Kronecker product, which only performs two one-dimensional angle estimates. Furthermore, the DOA and DOD pairing is given automatically. Finally, simulation results are presented to verify the efficiency of the proposed estimators.