ADAPTIVE SCHEME FOR OVERSAMPLED FRONT ENDS

Olli Vainio

Abstract

A computationally efficient adaptive filtering scheme for oversampled A/D converters is discussed. The decimating digital filter is constructed as a combination of a sinc decimator and an adaptive predictor. A reduced-rank adaptive algorithm with two adaptive parameters is proposed for this purpose avoiding the complexity of the commonly used full-rank algorithms. The characteristics of the adaptive filter are considered, and a comparative example of data signal processing is shown.

Keywords

adaptive filters, multirate filters, oversampled converters

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IMEKO-TC4-2002-056.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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