Linear phase sparse system identification in the presence of impulsive noise

摘要

In this paper, we incorporate an ι_p-norm sparsity constraint into linear phase constrained affine projection-sign algorithm (LPCAP-SA). The proposed algorithm combines the effect of linear phase constrained affine projection sign algorithm and ι_p-norm sparsity constraint .The proposed algorithm has better performance for linear phase sparse system identification in the presence of vigorous impulsive interference. The proposed ι_p-norm LPCAP-SA is based on the ι_1-norm minimisation criterion on posterior error and ι_p-Norm on weight coefficients and a linear phase constraint. Simulations in Matlab software show that the proposed ι_p-norm LPCAP-SA has robustness against impulsive interferences and sparse environment for linear phase system.