A Robust Direction of Arrival Estimation Method in Impulsive Noise
Lin Cheng, Jiao Chao, Suohui Ding, Yang‐Yang Dong · 2022 4th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP) · 2022
Aiming at the lack of robustness of existing direction of arrival (DOA) estimation algorithms in impulsive noise environment, a new robust DOA estimation method in impulsive noise is proposed in this paper. In this method, the hyperbolic tangent function with good amplitude limiting characteristics and the sign function with phase holding performance are selected to solve the effective suppression of impulse noise and the efficient and reliable retention of signal information. Combined with MUSIC algorithm, the robust DOA estimation under impulse noise is achieved. Simulation results show that the proposed method has better and more robust DOA estimation performance than existing methods.