MVDR broadband beamforming using polynomial matrix techniques

Weiss, S; Bendoukha, S; Alzin, A; Coutts, FK; Proudler, IK; Chambers, J

doi:10.1109/EUSIPCO.2015.7362501

MVDR broadband beamforming using polynomial matrix techniques

Lookup NU author(s): Professor Jonathon Chambers

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

This paper presents initial progress on formulating minimum variance distortionless response (MVDR) broadband beam forming using a generalised sidelobe canceller (GSC) in the context of polynomial matrix techniques. The quiescent vector is defined as a broadband steering vector, and we propose a blocking matrix design obtained by paraunitary matrix completion. The polynomial approach decouples the spatial and temporal orders of the filters in the blocking matrix, and de couples the adaptive filter order from the construction of the blocking matrix. For off-broadside constraints the polynomial approach is simple, and more accurate and considerably less costly than a standard time domain broadband GSC.