Robust Wideband 2-D DOA Estimation for Compact Uniform Circular Arrays in Shallow Water Doubly Spread Channels
In shallow-water leader–follower AUV operations, the compact uniform circular array (UCA) carried by a micro autonomous underwater vehicle (AUV) suffers from a limited aperture. Together with strong coherent multipath and Doppler scaling, this limitation often causes high-resolution two-dimensional direction of arrival...