ESPRIT algorithm is a fast direction finding method with high resolution, but it is a 1-D method and can't be generalized to 2-D directly. This paper, based on a special array geometry, proposes a new 2-D direction finding method-2-D Virtual ESPRIT algorithm, whose low computation cost is comparable with to that of 1-D ESPRIT algorithm.
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刘全,王雪松,皇甫堪.二维虚拟ESPRIT算法[J].国防科技大学学报,1999,21(4):63-66. Liu Quan, Wang Xuesong, Huangfu Kan.2-D Virtual ESPRIT Algorithm[J]. Journal of National University of Defense Technology,1999,21(4):63-66.