IIR digital filtering of non-uniformly sampled signals via state representation

Authors:
L. Fesquet;B. Bidégaray-Fesquet
Affiliations:
TIMA (CNRS, Grenoble INP, UNiversité Joseph Fourier), 46 avenue Felix-Viallet, 38031 Grenoble Cedex, France;LJK (CNRS, Université Joseph Fourier, Grenoble INP, Université Pierre Mendès-France), B.P. 53, 38041 Grenoble Cedex 9, France
Venue:
Signal Processing
Year:
2010

Citing 3
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Abstract

This article describes a new kind of processing chain based on a non-uniform sampling scheme provided by a level-crossing ADC. The chain implements IIR filters which process directly the non-uniform samples without resampling in a regular scheme. The non-uniformity in the sample times leads to choose a state representation for the filters. The stability is studied and the performances of various numerical schemes used to implement the filters in this representation are compared.