Title :
Filter banks with rational decimation and interpolation rates
Author :
Yim, W.H. ; Coakley, F.P.
Author_Institution :
Surrey Univ., Guildford, UK
fDate :
4/9/1992 12:00:00 AM
Abstract :
All existing uniform filter banks have integer decimation or interpolation rates. The article presents a novel polyphase-matrix-FFT structure that is capable of a rational conversion rate. This structure can combine sampling rate conversion and demultiplexing in multicarrier demodulators leading to a significant reduction in computation rates, especially for clock-synchronous systems.
Keywords :
demodulators; fast Fourier transforms; filters; frequency division multiplexing; clock-synchronous systems; computation rates; demultiplexing; interpolation rates; multicarrier demodulators; polyphase-matrix-FFT structure; rational conversion rate; rational decimation; sampling rate conversion; uniform filter banks;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920460
