A METHOD FOR GENERATING NOISE REFERENCES FOR GENERALIZED SIDELOBE CANCELING

摘要

This invention describes a method for generating noise references for adaptive interference cancellation filters for applications in generalized sidelobe canceling systems. More specifically the present invention relates to a multi-microphone beamforming system similar to a generalized sidelobe canceller (GSC) structure, but the difference with the GSC is that the present invention creates noise references (from 25-1) to the adaptive interference canceller (AIC) (21-1) filters using steerable beams (from 22) that block out the desired signal when the beam is steered away from the desired signal source location.