MIMO雷达DOD和DOA联合估计算法: RTR-ESPRIT

doi:CNKI:11-1929/V.20120320.1059.001

Abstract

Abstract: A receive-transmit-receive (RTR)-ESPRIT algorithm is proposed for the joint estimation of the direction of departure (DOD) and direction of arrival (DOA) for a bistatic multiple-input multiple-output (MIMO) radar. The proposed algorithm first exploits a one-dimensional receive-ESPRIT (R-ESPRIT) to get initial DOA estimates, and then employs two one-dimensional transmit-ESPRIT (T-ESPRIT) and R-ESPRIT algorithms to obtain accurate DOD and DOA estimates, respectively. Between each of the two ESPRIT algorithms, a receive spatial beamforming process or a transmit spatial beamforming process is implemented by orthogonal projection operators. Compared with the ESPRIT algorithm, the proposed algorithm greatly reduces the dimension of the data covariance matrix as well as computational complexity, and requires no parameter pairing. The RTR-ESPRIT method is also proved to be applicable to the case of coherent signals and single snapshots. Simulation results are provided to verify the efficacy and good estimation performance of the proposed algorithm.

Key words: bistatic MIMO radar, ESPRIT algorithm, orthogonal projection operator, coherent signal, single snapshot, direction of departure, direction of arrival

CLC Number:

WANG Kerang, HE Jin, HE Yapeng, ZHU Xiaohua, ZHANG Yanhong. RTR-ESPRIT for Joint DOD and DOA Estimation for MIMO Radars[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, (5): 893-901.

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RTR-ESPRIT for Joint DOD and DOA Estimation for MIMO Radars

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