Direction of Arrived Estimation Based on the Co-Prime Arrays

In this paper, we study the co-prime arrays structure, and two kinds of DOA (Direction Of Arrival) algorithms are analyzed based on the structure, including spatial smoothing MUSIC and compressed sensing algorithm. Compared with traditional MUSIC algorithm, these two algorithms can decorrelate the incoming coherent interface signals while the traditional MUSIC requires the received signals only to be incoherent, besides, applying the compressed sensing algorithm, DOA information can be got from the single snapshot, the convex optimization tool CVX is also be used in this method.