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A Finite Precision ...
A Finite Precision LMS Algorithm for Increased Quantization Robustness
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Lindström, Fredric (author)
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Dahl, Mattias (author)
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Claesson, Ingvar (author)
- Bangkok, : Institute of Electrical and Electronics Engineers Inc. 2003
- 2003
- English.
- Related links:
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https://urn.kb.se/re...
Abstract
Subject headings
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- The well known Least Mean Square (LMS) algorithm, or variations thereof are frequently used in adaptive systems. When the LMS algorithm is implemented in a finite precision environment it suffers from quantization effects. These effects can severely degrade the performance of the algorithm. This paper proposes a modification of the LMS algorithm that reduces the impact of quantization at virtually no extra computational cost. The paper contains an off-line evaluation of a system identification scheme where the presented algorithm outperforms the classical LMS algorithm yielding a better modelling of the unknown plant. This approach is well suited for adaptive system identification, e.g. beam-forming, electrocardiography, and echo cancelling.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- Digital signal processing
- Robustness (control systems)
- Vectors
- Algorithms
Publication and Content Type
- ref (subject category)
- kon (subject category)
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