Journal article
General multirate building structures with application to nonuniform filter banks
IEEE transactions on circuits and systems. 2, Analog and digital signal processing, Vol.45(8), pp.948-958
08/01/1998
DOI: 10.1109/82.718805
Abstract
This paper proposes a general linear dual-rate structure for multirate signal processing, which encompasses the usual multirate building blocks - expanders, LTI filters, decimators, and their cascade combinations - as special cases. Structural properties of such dual-rate systems are studied in detail; in particular, several equivalent implementation structures are proposed: 1) cascade connections of a block expander, a linear periodically time-varying system, and a block decimator; 2) vector sample-rate changers; and 3) cascade connections of an expander, certain linear switching time-varying system, and a decimator. Using such general building blocks in multirate signal processing allows more design freedom and therefore can achieve what is otherwise impossible. This is illustrated in nonuniform multirate filter banks. Using the general building blocks as synthesis systems, the incompatibility for alias cancellation and structural dependency constraint for design, both due to fractional decimation ratios in different channels, are eliminated. Hence optimal design of synthesis systems is possible.
Details
- Title: Subtitle
- General multirate building structures with application to nonuniform filter banks
- Creators
- Tongwen ChenLi QiuEr-Wei Bai
- Resource Type
- Journal article
- Publication Details
- IEEE transactions on circuits and systems. 2, Analog and digital signal processing, Vol.45(8), pp.948-958
- Publisher
- Institute of Electrical and Electronics Engineers, Inc
- DOI
- 10.1109/82.718805
- ISSN
- 1057-7130
- eISSN
- 1558-125X
- Language
- English
- Date published
- 08/01/1998
- Description audience
- Academic; Trade
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984083864302771
Metrics
10 Record Views