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) anddirect...
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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) anddirection of arrival (dOA) in a multiple-input-multiple-output radar system. The proposed algorithm is based on a data matrix and estimates dOd anddOA without a pairing operation. The computational complexity of the proposed joint ESPRIT algorithm is derived to be less than that of conventional two dimension multiplesignalclassification (2d-MUSIC) and reduceddimension multiplesignalclassification. 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 ESPRIT algorithm.
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