Fig. 7
From: Spherical harmonic covariance and magnitude function encodings for beamformer design

Beampatterns are shown for far-field beamformers fitted to target MoE and PoE targets specified in Fig. 3 using LS, MLS, and MSLS methods. LS over-fits to a 0 radian phase response. MLS achieves a closer fit to the magnitude target. MSLS over-fits to areas where the magnitude target is large