Formatting Bits to Better Implement Signal Processing Algorithms

Benoit Lopez; Thibault Hilaire; Laurent-Stéphane Didier

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Paper

Formatting Bits to Better Implement Signal Processing Algorithms

Topics: Digital Filter Design and Implementation

In Proceedings of the 4th International Conference on Pervasive and Embedded Computing and Communication Systems PECCS - Volume 1, 104-111, 2014 , Lisbon, Portugal

Authors: Benoit Lopez ¹ ; Thibault Hilaire ¹ and Laurent-Stéphane Didier ²

Affiliations: ¹ Pierre and Marie Curie University (UPMC Univ Paris 06), France ; ² University of the South and Toulon-Var (USTV), France

Keyword(s): Fixed-point Arithmetic, Accurate Sum-of-Products, Bit Formatting, Digital Signal Processing Implementation.

Related Ontology Subjects/Areas/Topics: Digital Filter Design and Implementation ; Digital Signal Processing ; Telecommunications

Abstract: This article deals with the fixed-point computation of the sum-of-products, necessary for the implementation of several algorithms, including linear filters. Fixed-point arithmetic implies output errors to be controlled. So, a new method is proposed to perform accurate computation of the filter and minimize the word-lengths of the operations. This is done by removing bits from operands that don’t impact the final result under a given limit. Then, the final output of linear filter is guaranteed to be a faithful rounding of the real output.

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Paper citation in several formats:

Lopez, B.; Hilaire, T. and Didier, L. (2014). Formatting Bits to Better Implement Signal Processing Algorithms. In Proceedings of the 4th International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS; ISBN 978-989-758-000-0; ISSN 2184-2817, SciTePress, pages 104-111. DOI: 10.5220/0004711201040111

@conference{peccs14,
author={Benoit Lopez. and Thibault Hilaire. and Laurent{-}Stéphane Didier.},
title={Formatting Bits to Better Implement Signal Processing Algorithms},
booktitle={Proceedings of the 4th International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS},
year={2014},
pages={104-111},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004711201040111},
isbn={978-989-758-000-0},
issn={2184-2817},
}

TY - CONF

JO - Proceedings of the 4th International Conference on Pervasive and Embedded Computing and Communication Systems - PECCS
TI - Formatting Bits to Better Implement Signal Processing Algorithms
SN - 978-989-758-000-0
IS - 2184-2817
AU - Lopez, B.
AU - Hilaire, T.
AU - Didier, L.
PY - 2014
SP - 104
EP - 111
DO - 10.5220/0004711201040111
PB - SciTePress