Digital filtering of band-limited signals using Periodic Nonuniform Sampling

Tzvetkov, Kostadin and Tarczynski, Andrzej (2008) Digital filtering of band-limited signals using Periodic Nonuniform Sampling. In: 2nd International Conference on Signals, Circuits and Systems, 2008. SCS 2008. IEEE, pp. 1-6. ISBN 9781424426270

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Official URL: http://dx.doi.org/10.1109/ICSCS.2008.4746917

Abstract

We examine the problem of digital filtering of band-limited signals by means of a linear digital filter with one or more stopbands. The main target of the study is to filter the signals using lower than Landau sampling rates, where the Landau rate is defined as the total bandwidth of the input signal. In order to reach such low rates Periodic Nonuniform Sampling is employed. We derive necessary and sufficient conditions for perfect filtering, and propose a practical algorithm for constructing PNS grids that allow for sub-Landau sampling and filtering. Finally, we present a reconstruction system and provide a numerical result illustrating the proposed method.

Item Type: Book Section
Uncontrolled Keywords: Landau sampling rates, band-limited signals, digital filtering, periodic nonuniform sampling
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 07 May 2009 09:22
Last Modified: 11 Aug 2010 14:35
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/6804

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