Blind source separation-based 2-D angle estimation with uniform circular array

This paper proposes a blind source separation (BSS)-based method for 2-D angle estimation of multiple emitter using a uniform circular array (UCA). The array manifold matrix is first estimated via BSS method. Then 2-D angle is obtained by applying least squares method to each column of the estimated matrix, each column corresponds to a pair of 2-D angle. The proposed method do not need parameter pairing or 2-D frequency search operation. Some simulation results are presented to demonstrate the effectiveness of the proposed method.