Realization of a generalized sidelobe canceller

The use of adaptive multichannel lattice/escalator filters to realize a generalized sidelobe canceller is proposed. This paper studies the performances of the proposed methods and the TDL counterpart via computer simulations for both stationary and nonstationary environments. Experimental results show that the lattice/escalator realizations converge faster and yield smaller mean-square errors than the TDL counterpart. Also, experiments seem to indicate that the beam patterns of the escalator realization are the most consistent, while those of the lattice realization are more consistent than the TDL counterpart.