In this paper, a novel subband-selective generalized sidelobe canceller (GSC) with cosine-
modulation for partially adaptive broadband beamforming is proposed. The columns of the
blocking matrix are derived from a prototype vector by cosine-modulation, and the broadside
constraint is incorporated by imposing zeros on the prototype vector appropriately. These
columns constitute a series of bandpass filters, which select signals with specific direction of
arrivals and frequencies. This results in high pass-type bandlimited spectra of the blocking …

In this paper, a novel subband-selective generalized sidelobe canceller (GSC) with cosine-
modulation for partially adap-tive broadband beamforming is proposed. The columns of the
blocking matrix are derived from a prototype vector by cosine-modulation, and the broadside
constraint is incorporated by imposing zeros on the prototype vector appropriately. These
columns constitute a series of bandpass filters, which select signals with specific direction of
arrivals and frequencies. This results in highpass-type bandlimited spectra of the blocking …