DocumentCode
302816
Title
A polyphase approach to time-varying filter banks
Author
Phoong, See-May ; Vaidyanathan, P.P.
Author_Institution
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Volume
3
fYear
1996
fDate
7-10 May 1996
Firstpage
1554
Abstract
We introduce a polyphase representation for linear time-varying (LTV) filters. Using the proposed polyphase approach, we are able to show some unusual properties of LTV filter bank (FB) that have not been pointed out before. The problem of interchangeability of analysis and synthesis banks is considered. Lossless TVFBs is studied in detail. Perfect reconstruction (PR) can always be obtained for lossless TVFBs. However, in general a PR lossless TVFB will only generate a tight frame
Keywords
band-pass filters; filtering theory; signal reconstruction; signal representation; signal synthesis; time-varying filters; analysis filter banks; linear time-varying filters; lossless filter banks; perfect reconstruction; polyphase representation; synthesis filter banks; Channel bank filters; Delay; Filter bank; IIR filters; Image coding; Image reconstruction; Interpolation; Nonlinear filters; Speech coding; Transmission line matrix methods;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location
Atlanta, GA
ISSN
1520-6149
Print_ISBN
0-7803-3192-3
Type
conf
DOI
10.1109/ICASSP.1996.544097
Filename
544097
Link To Document