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Formatting bits to better implement signal processing algorithms

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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Contributor : Benoit Lopez <>
Submitted on : Monday, October 20, 2014 - 10:47:15 PM
Last modification on : Thursday, March 21, 2019 - 1:13:42 PM
Document(s) archivé(s) le : Wednesday, January 21, 2015 - 11:36:57 AM


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Benoit Lopez, Thibault Hilaire, Laurent-Stéphane Didier. Formatting bits to better implement signal processing algorithms. 4th international Conference on Pervasive and Embedded Computing and Communication Systems (PECCS), Jan 2014, Lisbon, Portugal. pp.104-111, ⟨10.5220/0004711201040111⟩. ⟨hal-01076049⟩



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