Rearranged coprime array to increase degrees of freedom and reduce mutual coupling

Coprime array for direction of arrivals finding has attracted increasing interest since it can provide enhanced degrees freedom. However, due to the holes in difference coarray, available information is not fully exploited. In this paper, we propose a rearranged coprime configuration fill coarray. The proposed new allows filling and reducing mutual coupling effect at same time. We classify all holes-triangle as design guideline array. Few redundant sensors generalized are sparse positions, which determined by position holes. By doing so, consecutive part conventional coarray be significantly increased. Meanwhile, also dramatically reduced because relocated remote positions. Simulation results verify superiority compared with other arrays.