Wavelet Packets Transform based Adaptive Filter

Abstract

In this paper wavelet packets transform is used in an adaptive filtering structure. The coefficients of the adaptive filters are updated by utilizing Recursive Least Square (RLS) algorithm. In order to get an efficient adaptive filter, the input and output will be decomposed by wavelet packet transform and in each band, RLS algorithm will be applied. Further more we will compare our proposed methods to the wavelet transform based one.