Comments on "Blind Calibration and DOA Estimation With Uniform Circular Arrays in the Presence of Mutual Coupling"
David Yang Gao, Binglu Wang, Yan Guo · IEEE Antennas and Wireless Propagation Letters · 2006
A modification of the proposed algorithm is suggested for better numerical stability and less computation load. The overlooked parameter identifiability problem of the proposed algorithm is discussed in detail. Besides, solution to the ambiguous DOA estimates is also proposed.