IEEE Signal Processing Letters
We consider estimating the direction of arrival (DOA) in the presence of sensor array error. In the proposed method, a blind signal separation method, the Joint Approximation and Diagonalization of Eigenmatrices (JADE) algorithm, is implemented to separate the signal vector and the mixing matrix consisting of the array manifold matrix and the sensor array error matrix. Based on a new mixing matrix and the reconstruction of the array output vector of each individual signal, we propose a novel DOA estimation method and sensor array error calibration procedure. This method is independent of array phase errors and performs well against difference of SNR of signals. Numerical simulations verify the effectiveness of the proposed method.
Liu, Jianfei; Wu, Xiongbin; Emery, William J.; Zhang, Lan; Li, Chuan; and Ma, Ketao, "Direction of Arrival Estimation and Sensor Array Error Calibration Based on Blind Signal Separation" (2017). Aerospace Engineering Sciences Faculty Contributions. 22.