@ARTICLE{8684295, author={Liu, Qi and Gu, Yuantao and So, Hing Cheung}, journal={IEEE Transactions on Aerospace and Electronic Systems}, title={DOA Estimation in Impulsive Noise via Low-Rank Matrix Approximation and Weakly Convex Optimization}, year={2019}, volume={55}, number={6}, pages={3603-3616}, doi={10.1109/TAES.2019.2909728}}