Polyphase matrix for rational decimation/interpolation systems

Thomas J. Frederick; Nurgun Erdol

doi:10.1117/12.150969

27 August 1993 Polyphase matrix for rational decimation/interpolation systems

Thomas J. Frederick, Nurgun Erdol

Proceedings Volume 1961, Visual Information Processing II; (1993) https://doi.org/10.1117/12.150969
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

This paper deals with the system for rational sampling rate change. Two efficient implementations are given. The first structure shows the relationship between the polyphase decomposition of the output and the linear, periodically time-varying (LPTV) nature of the system. The second system refines the first one step further to give the polyphase matrix implementation. Frequency domain relations are given for both systems. The first system is a single-input/multi-output time-varying system, and in this case the z-domain relation is not a transfer function. However, the polyphase matrix can be represented as a multi-input/multi- output time-invariant system, and as such has a transfer matrix, which is given.

Citation Download Citation

Thomas J. Frederick and Nurgun Erdol "Polyphase matrix for rational decimation/interpolation systems", Proc. SPIE 1961, Visual Information Processing II, (27 August 1993); https://doi.org/10.1117/12.150969

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