A spatial filtering approach to robust adaptive beaming
Ingvar Claesson, Sven Erik Nordholm · IEEE Transactions on Antennas and Propagation · 1992
The problem of controlling the superresolution in adaptive beamformers is treated. A straightforward method is presented that works for both narrowband and broadband arrays. The method is based on forming the blocking matrix in a general sidelobe canceller structure using a spatial FIR filter. The suppression of this spatial filter and the implicit noise of the leaky least-mean-square algorithm together determine the beamformer.>