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Table 3 Beamformer cross-density probabilistic directivity index (Eq. 35) performance (dB)

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

Row: PDI / Col: BF MVDR MVDR GRQ GRQ
(fA,fR) (D, U) (D, X*) (X, U) (X, X*)
(Dirac, Uniform) 9.53 9.09 8.11 3.46
(Dirac, XTC*) 8.15 8.57 7.7 4.63
(XTC, Uniform) 2.14 2.15 2.67 2.19
(XTC, XTC*) 0.756 1.64 2.26 3.36