Fast and Accurate Computation of the Round-Off Noise of LTI Systems

López Martín, Juan Antonio and Caffarena Fernández, Gabriel and Carreras Vaquer, Carlos and Nieto-Taladriz García, Octavio (2008). Fast and Accurate Computation of the Round-Off Noise of LTI Systems. "IET Circuits Devices and Systems", v. 2 (n. 5); pp. 393-408. ISSN 1751-8601. https://doi.org/10.1049/iet-cds:20070198.

Description

Title: Fast and Accurate Computation of the Round-Off Noise of LTI Systems
Author/s:
  • López Martín, Juan Antonio
  • Caffarena Fernández, Gabriel
  • Carreras Vaquer, Carlos
  • Nieto-Taladriz García, Octavio
Item Type: Article
Título de Revista/Publicación: IET Circuits Devices and Systems
Date: March 2008
ISSN: 1751-8601
Volume: 2
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Ingeniería Electrónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (728kB) | Preview

Abstract

From its introduction in the last decade, affine arithmetic (AA) has shown beneficial properties to speed up the time of computation procedures in a wide variety of areas. In the determination of the optimum set of finite word-lengths of the digital signal processing systems, the use of AA has been recently suggested by several authors, but the existing procedures provide pessimistic results. The aim is to present a novel approach to compute the round-off noise (RON) using AA which is both faster and more accurate than the existing techniques and to justify that this type of computation is restricted to linear time-invariant systems. By a novel definition of AA-based models, this is the first methodology that performs interval-based computation of the RON. The provided comparative results show that the proposed technique is faster than the existing numerical ones with an observed speed-up ranging from 1.6 to 20.48, and that the application of discrete noise models leads to results up to five times more accurate than the traditional estimations.

More information

Item ID: 2855
DC Identifier: http://oa.upm.es/2855/
OAI Identifier: oai:oa.upm.es:2855
DOI: 10.1049/iet-cds:20070198
Official URL: http://scitation.aip.org/dbt/dbt.jsp?KEY=ICDSB4&Volume=2&Issue=4
Deposited by: Memoria Investigacion
Deposited on: 13 Apr 2010 11:22
Last Modified: 20 Apr 2016 12:29
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM