Use of oversampled ∑-∆ modulator for analogue adaptive FIR filters based on LMS algorithm

Huang Qiuting; G. S. Moschytz

doi:10.1049/el:19920475

Use of oversampled ∑-∆ modulator for analogue adaptive FIR filters based on LMS algorithm

Huang Qiuting, G. S. Moschytz

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

An adaptive FIR filter configuration which uses a ∑-∆ modulator as a front end is proposed for implementing the LMS algorithm in analogue form. The oversampled ∑-∆ modulator converts the filter input into a binary sequence, which can be readily delayed and multiplied with a shift register and on/off switching. Computer simulations show very good performance for such a hardware efficient configuration.

Original language	English
Pages (from-to)	751-753
Number of pages	3
Journal	Electronics Letters
Volume	28
Issue number	8
DOIs	https://doi.org/10.1049/el:19920475
State	Published - Apr 1992
Externally published	Yes

Keywords

Adaptive filters
Algorithms
Filters
Modulation
Switched capacitor filters

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10.1049/el:19920475

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abstract = "An adaptive FIR filter configuration which uses a ∑-∆ modulator as a front end is proposed for implementing the LMS algorithm in analogue form. The oversampled ∑-∆ modulator converts the filter input into a binary sequence, which can be readily delayed and multiplied with a shift register and on/off switching. Computer simulations show very good performance for such a hardware efficient configuration.",

keywords = "Adaptive filters, Algorithms, Filters, Modulation, Switched capacitor filters",

author = "Huang Qiuting and Moschytz, {G. S.}",

year = "1992",

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AB - An adaptive FIR filter configuration which uses a ∑-∆ modulator as a front end is proposed for implementing the LMS algorithm in analogue form. The oversampled ∑-∆ modulator converts the filter input into a binary sequence, which can be readily delayed and multiplied with a shift register and on/off switching. Computer simulations show very good performance for such a hardware efficient configuration.

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KW - Algorithms

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KW - Switched capacitor filters

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Use of oversampled ∑-∆ modulator for analogue adaptive FIR filters based on LMS algorithm

Abstract

Keywords

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