DocumentCode
1218785
Title
Extended polyphase structures for multirate DSP
Author
Yim, W.H. ; Coakley, F.P. ; Evans, B.G.
Author_Institution
Centre for Satellite Eng. Res., Surrey Univ., Guildford, UK
Volume
139
Issue
4
fYear
1992
fDate
8/1/1992 12:00:00 AM
Firstpage
273
Lastpage
277
Abstract
Rational sampling rate conversion in linear multirate digital signal processing systems can be efficiently realised by a matrix of polyphase filters. The paper presents a new analytical approach that simplifies the design of polyphase matrix and associated structures. Instead of a set of procedures and network transformation rules based on signal-flow graphs, the matrix of subfilters is obtained by a simple formula, which contains interpolators and decimators as special cases. Using this approach, it is simple to derive Z -transforms of subfilters, and to minimise delay elements
Keywords
digital filters; signal processing; Z-transforms; decimators; delay elements; interpolators; linear DSP systems; multirate DSP; polyphase filters; polyphase matrix; polyphase structures; rational sampling rate conversion; subfilters;
fLanguage
English
Journal_Title
Radar and Signal Processing, IEE Proceedings F
Publisher
iet
ISSN
0956-375X
Type
jour
Filename
153504
Link To Document