Title :
MVDR beamforming with inverse updating
Author :
Moonen, Marc ; Proudler, Ian K.
Author_Institution :
E.E. Dept., Katholieke Univ. Leuven, Leuven, Belgium
Abstract :
A stable alternative is described for the `standard´ systolic MVDR beamforming algorithm of McWhirter and Shepherd [4], which is known to suffer from linear round-off error build-up. The algorithm combines a so-called inverse QR-updating algorithm, with (part of) the McWhirter and Shepherd procedure. Similar to the McWhirter and Shepherd algorithm, it is amenable to parallel (pipelined) implementation. Unlike the McWhirter and Shepherd algorithm, it is stable numerically, and hence does not need repeated reinitializations.
Keywords :
array signal processing; matrix decomposition; matrix inversion; MVDR beamforming algorithm; McWhirter and Shepherd procedure; inverse QR-updating algorithm; linear round-off error; minimum variance distortionless response; parallel implementation; Array signal processing; Arrays; Linear antenna arrays; Postal services; Signal processing algorithms; Standards;
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4
