Weighted minimax design of QMF banks: results and comparisons

Abstract

An iterative method proposed by Chen and Lee (1992) with certain modifications based on the weighted least-squares (WLS) updating scheme proposed by Sunder and Ramathandran (1994) is applied to the design of quadrature mirror-image filter (QMF) banks. The results are then compared with results obtained by other WLS methods described in the literature. The design of QMF banks satisfying prescribed specifications is also considered.