DOA estimation method for multi-path targets based on TR MIMO radar.

Autor:	Liu, Meng-bo, Hu, Guo-ping, Shi, Jun-peng, Zhou, Hao
Předmět:	DIRECTION of arrival estimation WAVE analysis CATHODE ray oscillographs ALGORITHMS ESTIMATION theory
Zdroj:	Journal of Engineering; Feb2019, Vol. 2019 Issue 2, p461-465, 5p
Abstrakt:	To reduce the large errors for direction of arrival (DOA) estimation in the multipath condition, a DOA estimation method for multipath targets based on time reversal (TR) multi-input multi-output (MIMO) radar is proposed. First, the proposed algorithm combines the focusing characteristic of TR technology with the waveform diversity and symmetry characteristic of MIMO radar, obtaining the virtual sub-arrays of echo signal. Then, the authors multiplex the rows and columns and apply forward–backward spatial smoothing algorithm to remove the coherence of the virtual sub-arrays, effectively improving the DOA estimation accuracy for multipath targets. Simulation results verify the validity of the proposed method. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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