An array element mutual coupling error estimation and correction algorithm

Abstract:
The array element mutual coupling error causes the array flow pattern to be biased and perturbed in the estimation of DOA (Direction of Arrival), resulting in estimation performance degradation. To address this problem, a mutual coupling error estimation algorithm based on MUSIC (Multiple Signal Classification) iterative method is proposed. The approach can estimate the array element mutual coupling error and increase Bode direction estimation performance, and simulation results confirm the algorithm's usefulness.