Journal
IEEE COMMUNICATIONS LETTERS
Volume 21, Issue 5, Pages 1075-1078Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2017.2664809
Keywords
Generalized coprime planar array (GCPA); DOA; degree of freedom (DOF)
Categories
Funding
- China NSF [61371169, 61601167]
- Jiangsu NSF [BK20161489]
- National Mobile Communications Research Laboratory, Southeast University [2015D03]
- Qing Lan Project
- priority academic program development of Jiangsu high education institutions
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In this letter, we propose a generalized coprime planar array (GCPA) geometry for 2-D direction of arrival (DOA) estimation, where two rectangular uniform planar subarrays are used. The proposed geometry allows a more flexible array layout and extends the array aperture to achieve a great performance improvement. We verify that GCPA can obtain a higher degree of freedom (DOF) than square coprime planar array and we derive the principle for array layout of GCPA to obtain the maximum DOF. The superiority of GCPA are revealed by numerical simulations with the classical DOA methods.
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