M. Winzker, K. Grüger, P. Pirsch, "VLSI Architectures of Filterbanks for an HDTV subband coder with 140 Mbit/s," Fourth HDTV Workshop, Torino, Italy, 1991.

Abstract

VLSI architectures of subband filterbanks for HDTV have been investigated in order to achieve compact realization. lmplementation of QMF filters in polyphase structure provides large savings in logic complexity. The polyphase structure has also the advantage of reducing the operating dock frequency. A further reduction of hardware expense can be achieved by dedicated filter realizations for specific filter coefficients. Considering these measures VLSI chips in CMOS technology have been designed for a two-dimensional QMF filterbank with 10*14 taps.