A generalized rate change filter architecture

Authors:
David B. Chester
Affiliations:
Harris Corporation, Melbourne, FL
Venue:
ICASSP'93 Proceedings of the 1993 IEEE international conference on Acoustics, speech, and signal processing: digital speech processing - Volume III
Year:
1993

Citing 2
Cited 0

Multirate Digital Signal Processing

Multirate Digital Signal Processing
High-decimation digital filters

ICASSP '91 Proceedings of the Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference

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Abstract

Using multistage filter architectures for the efficient implementation of multirate filters is well known [1]. In conventional implementations it is assumed that the decimation and interpolation factors are the products of the respective factors for each individual stage and are therefore composite numbers. This paper describes a generalized rate change finite impulse response (FIR) filter architecture based on a cascade of single stage rate change filter building blodcs which allows the decimation and interpolation factors to be prime numbers while preserving the multistage efficiency. Also descrided in this paper are the degenerate cases of a generalized decimator and a generalized interpolator.