Conjugate gradient implementation method of multistage Wiener Filter

Multistage Wiener Filter is a reduced-rank adaptive signal process method. This paper introduces a new implement method of multistage wiener filter, namely conjugate gradient multistage wiener filter. This method inserts the conjugate gradient recursions into the generalized sidelobe canceller structure, and provides a constrained multistage wiener filter. Lastly apply this method to space-time adaptive processing, and Mountaintop data simulation results show that this conjugate gradient multistage wiener filter significantly enhance the processing performance for airborne surveillance application in practical complex environment, and reduce the computation burden..