Direction-of-Arrival Estimation of Closely Spaced Emitters Using Compact Arrays
Figure 1
Summary of DOA estimations using MPM for a four-element ULA with interelement separation varying from to . Two equal-power incoming signals are from the directions of and with an SNR of 5 dB and 3 dB, respectively. The graph shows (i) average bias of the estimated directions and (ii) bias of the estimation of signals 1 and 2.
