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Enlightened by nonlinear property of the pseudo direction of arrivals (DOA) estimation, a rotary method by rotating the array is used to suppress ambiguity. By employing the multiple signal classical algorithm (MUSIC), the DOA is estimated before and after the rotation. Taking advantage of two estimations, a rotary MUSIC is defined to reduce the ambiguity, as well as the improved R-MUSIC. With simulations,...
In this paper we address a novel method of eliminating ambiguity for planar array. It is known that ambiguity appears in the direction of arrivals (DOA) estimation when the aperture of the array is large enough. We propose a method of rotating the array to solve the ambiguity problem. Firstly, we use multiple signal classical algorithm (MUSIC) to estimate DOA. Then we rotate an angle of the array...
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