期刊
IEEE SIGNAL PROCESSING LETTERS
卷 24, 期 4, 页码 495-499出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LSP.2017.2676124
关键词
Direction of arrival estimation; L-shaped array; pair matching; Rayleigh quotient; two dimensional
资金
- National High-tech R&D Program of China (863 Program) [2015AA80XXX86H]
A two-dimensional (2-D) direction of arrival estimation method for L-shaped array with automatic pairing is proposed. It exploits the conjugate symmetry property of the array manifold matrix to increase the effective array aperture and the number of virtual snapshots simultaneously, and then applies the principle of MUSIC to construct an angle cost function and transforms the conventional 2-D search into 1-D via a Rayleigh quotient, which can greatly reduce the computation complexity. Finally, the azimuth and elevation angles are estimated without pair matching. Simulation results show that the proposed method has a better performance and can resolve more sources than some existing computationally efficient methods.
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