Fig. 2From: Low complexity sparse beamspace DOA estimation via single measurement vectors for uniform circular arrayMapping error as a function of phase mode He for UCA with r/λ, in which the circumferential spacing between adjacent sensors is 0.0313r. The maximum of phase mode is respectively 7, 11, 15, 18, and 22, correspondingly M=16, 24, 32, 40, 48Back to article page