Optimal FIR subband beamforming for speech enhancement in multipath environments
Nedelko Grbić, Sven Erik Nordholm, Antonio Cantoni · IEEE Signal Processing Letters · 2003
The letter provides an analysis of optimal finite-impulse response subband beamforming for speech enhancement in multipath environments. A modification of the direct-path standard Wiener formulation is shown to give nearly optimal performance when it comes to signal-to-noise-plus-interference ratio, by including coherent multipath propagation in the criterion.