An automatically paired two-dimensional direction-of-arrival estimation method for two parallel uniform linear arrays |
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| Affiliation: | 1. College of Physical Science and Technology, Central China Normal University, Wuhan, China;2. School of Geodesy and Geomatics, Wuhan University, Wuhan, China;1. Aeronautical Key Laboratory for Digital Manufacturing Technologies, AVIC Beijing Aeronautical Manufacturing Technology Research Institute, Baliqiao, Chaoyang District, Beijing 100024, China;2. Key Laboratory of Inertial Science and Technology for National Defence, School of Instrument Science and Opto-Electronics Engineering, Beihang University, 37 Xueyuan Road, Haidian District, Beijing 100191, China;1. School of Geophysics and Information Technology, China University of Geosciences (Beijing), China;2. Institute of Electronics, Chinese Academy of Sciences, China |
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| Abstract: | In two-dimensional (2-D) direction-of-arrival (DOA) estimation, paring the azimuth and elevation angles of multiple sources is an important issue. In this letter, we propose a new automatically paired 2-D DOA estimation method by designing the geometry of two antenna subarrays and using the propagator method (PM). A special geometry between two parallel uniform linear arrays (ULAs) with a position displacement on the axial direction is proposed to facilitate the elevation and azimuth pairing and estimation. The simulation results have shown that the proposed method can achieve the same 2-D DOA estimation performance as the existing methods, while the complexity is reduced considerably. |
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| Keywords: | Two-dimensional (2-D) direction-of-arrival (DOA) estimation Azimuth and elevation pairing Parallel uniform linear arrays Propagator method 00-01 99-00 |
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