A CALIBRATED GENERALIZED SIDELOBE CANCELER FOR WIDE-BAND BEAMFORMING

In this paper, we present a method of wideband array calibration which minimizes signal cancellation in the generalized sidelobe canceller. Array calibration is achieved by deriving the optimal eigenvector-base d blocking matrix that minimizes leakage of the desired signal into th e noise cancelling filter, and also the corresponding passing matrix w hich maximally enhances the desired signal. Simulations and experiment al results using data collected from wideband arrays constructed at th e University of Texas at Dallas demonstrate that our calibration techn ique performs well with actual data as well as with simulated data.