This study presents an improved joint estimation method of signal parameters via rotational invariance technique (esprit) algorithm for low-complexity simultaneous estimation of direction of departure (DOD) and direct...
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This study presents an improved joint estimation method of signal parameters via rotational invariance technique (esprit) algorithm for low-complexity simultaneous estimation of direction of departure (DOD) and direction of arrival (DOA) in a multiple-input-multiple-output radar system. The proposed algorithm is based on a data matrix and estimates DOD and DOA without a pairing operation. The computational complexity of the proposed joint esprit algorithm is derived to be less than that of conventional two dimension multiple signal classification (2D-MUSIC) and reduced dimension multiple signal classification. The authors' simulation results demonstrate that the proposed algorithm achieves performance very close to that of 2D-MUSIC and better performance than that of the espritalgorithm.
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