A Model for the Extraction of Periodic Waveforms by Time Domain Averaging PDF Download

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A Model for the Extraction of Periodic Waveforms by Time Domain Averaging

A Model for the Extraction of Periodic Waveforms by Time Domain Averaging PDF Author: P. D. McFadden
Publisher:
ISBN: 9780642116772
Category : Signal processing
Languages : en
Pages : 18

Book Description
It is shown that the existing comb filter model of time domain averaging does not correctly describe the extraction of periodic waveforms from additive noise using a digital computer because it assumes a knowledge of the signal over an infinite time and the result it produces is not exactly periodic. A revised model is presented which requires only a finite number of samples and which produces a result which is periodic. It is demonstrated that the rejection of periodic noise of a known frequency can be optimized by the selection of a suitable number of averages.
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