<?xml version="1.0" encoding="utf-8"?>
<TEI xmlns="http://www.tei-c.org/ns/1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:hal="http://hal.archives-ouvertes.fr/" xmlns:gml="http://www.opengis.net/gml/3.3/" xmlns:gmlce="http://www.opengis.net/gml/3.3/ce" version="1.1" xsi:schemaLocation="http://www.tei-c.org/ns/1.0 http://api.archives-ouvertes.fr/documents/aofr-sword.xsd">
  <teiHeader>
    <fileDesc>
      <titleStmt>
        <title>HAL TEI export of hal-01515996</title>
      </titleStmt>
      <publicationStmt>
        <distributor>CCSD</distributor>
        <availability status="restricted">
          <licence target="https://creativecommons.org/publicdomain/zero/1.0/">CC0 1.0 - Universal</licence>
        </availability>
        <date when="2026-05-17T23:55:15+02:00"/>
      </publicationStmt>
      <sourceDesc>
        <p part="N">HAL API Platform</p>
      </sourceDesc>
    </fileDesc>
  </teiHeader>
  <text>
    <body>
      <listBibl>
        <biblFull>
          <titleStmt>
            <title xml:lang="en">Fast Fixed-Point Optimization of DSP Algorithms</title>
            <author role="aut">
              <persName>
                <forename type="first">Gabriel</forename>
                <surname>Caffarena</surname>
              </persName>
              <email type="md5">745261459a4ce0782c3e2f1e925fb31a</email>
              <email type="domain">ceu.es</email>
              <idno type="idhal" notation="numeric">1007211</idno>
              <idno type="halauthorid" notation="string">666975-1007211</idno>
              <affiliation ref="#struct-75882"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Ángel</forename>
                <surname>Fernández-Herrero</surname>
              </persName>
              <email type="md5">7e4b2507e4e918063f3867ff7c837624</email>
              <email type="domain">die.upm.es</email>
              <idno type="idhal" notation="numeric">1007212</idno>
              <idno type="halauthorid" notation="string">1165548-1007212</idno>
              <affiliation ref="#struct-302798"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Juan</forename>
                <forename type="middle">A.</forename>
                <surname>López</surname>
              </persName>
              <email type="md5">6e119c62d9024d7d423924e649fe1d9e</email>
              <email type="domain">die.upm.es</email>
              <idno type="idhal" notation="numeric">1007213</idno>
              <idno type="halauthorid" notation="string">1165549-1007213</idno>
              <affiliation ref="#struct-302798"/>
            </author>
            <author role="aut">
              <persName>
                <forename type="first">Carlos</forename>
                <surname>Carreras</surname>
              </persName>
              <email type="md5">a2f91af921e111af6022579e441e8c28</email>
              <email type="domain">die.upm.es</email>
              <idno type="idhal" notation="numeric">1007214</idno>
              <idno type="halauthorid" notation="string">1165550-1007214</idno>
              <affiliation ref="#struct-302798"/>
            </author>
            <editor role="depositor">
              <persName>
                <forename>Hal</forename>
                <surname>Ifip</surname>
              </persName>
              <email type="md5">2073ac78024b6e13f2714db96e9b1e63</email>
              <email type="domain">inria.fr</email>
            </editor>
          </titleStmt>
          <editionStmt>
            <edition n="v1" type="current">
              <date type="whenSubmitted">2017-04-28 14:29:49</date>
              <date type="whenModified">2026-04-03 11:32:02</date>
              <date type="whenReleased">2017-04-28 15:18:03</date>
              <date type="whenProduced">2010-09-27</date>
              <date type="whenEndEmbargoed">2015-01-01</date>
              <ref type="file" target="https://inria.hal.science/hal-01515996v1/document">
                <date notBefore="2015-01-01"/>
              </ref>
              <ref type="file" subtype="author" n="1" target="https://inria.hal.science/hal-01515996v1/file/978-3-642-28566-0_8_Chapter.pdf" id="file-1515996-1576624">
                <date notBefore="2015-01-01"/>
              </ref>
              <ref type="externalLink" target="https://link.springer.com/content/pdf/10.1007%2F978-3-642-28566-0_8.pdf"/>
            </edition>
            <respStmt>
              <resp>contributor</resp>
              <name key="200187">
                <persName>
                  <forename>Hal</forename>
                  <surname>Ifip</surname>
                </persName>
                <email type="md5">2073ac78024b6e13f2714db96e9b1e63</email>
                <email type="domain">inria.fr</email>
              </name>
            </respStmt>
          </editionStmt>
          <publicationStmt>
            <distributor>CCSD</distributor>
            <idno type="halId">hal-01515996</idno>
            <idno type="halUri">https://inria.hal.science/hal-01515996</idno>
            <idno type="halBibtex">caffarena:hal-01515996</idno>
            <idno type="halRefHtml">&lt;i&gt;18th International Conference on Very Large Scale Integration (VLSISOC)&lt;/i&gt;, Sep 2010, Madrid, Spain. pp.182-205, &lt;a target="_blank" href="https://dx.doi.org/10.1007/978-3-642-28566-0_8"&gt;&amp;#x27E8;10.1007/978-3-642-28566-0_8&amp;#x27E9;&lt;/a&gt;</idno>
            <idno type="halRef">18th International Conference on Very Large Scale Integration (VLSISOC), Sep 2010, Madrid, Spain. pp.182-205, &amp;#x27E8;10.1007/978-3-642-28566-0_8&amp;#x27E9;</idno>
            <availability status="restricted">
              <licence target="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0 - Attribution<ref corresp="#file-1515996-1576624"/></licence>
            </availability>
          </publicationStmt>
          <seriesStmt>
            <idno type="stamp" n="IFIP">IFIP - International Federation for Information Processing</idno>
            <idno type="stamp" n="IFIP-AICT" corresp="IFIP">IFIP Advances in Information and Communication Technology</idno>
            <idno type="stamp" n="IFIP-TC" corresp="IFIP">IFIP Technical Committees </idno>
            <idno type="stamp" n="IFIP-WG" corresp="IFIP">Working Groups</idno>
            <idno type="stamp" n="IFIP-VLSISOC" corresp="IFIP">IFIP-VLSISOC</idno>
            <idno type="stamp" n="IFIP-TC10" corresp="IFIP-TC">IFIP-TC10</idno>
            <idno type="stamp" n="IFIP-WG10-5" corresp="IFIP-WG">WG10-5: Design and Engineering of Electronic Systems</idno>
            <idno type="stamp" n="IFIP-AICT-373" corresp="IFIP-AICT">VLSI-SoC: Forward-Looking Trends in IC and Systems Design</idno>
          </seriesStmt>
          <notesStmt>
            <note type="audience" n="2">International</note>
            <note type="invited" n="0">No</note>
            <note type="popular" n="0">No</note>
            <note type="peer" n="1">Yes</note>
            <note type="proceedings" n="1">Yes</note>
          </notesStmt>
          <sourceDesc>
            <biblStruct>
              <analytic>
                <title xml:lang="en">Fast Fixed-Point Optimization of DSP Algorithms</title>
                <author role="aut">
                  <persName>
                    <forename type="first">Gabriel</forename>
                    <surname>Caffarena</surname>
                  </persName>
                  <email type="md5">745261459a4ce0782c3e2f1e925fb31a</email>
                  <email type="domain">ceu.es</email>
                  <idno type="idhal" notation="numeric">1007211</idno>
                  <idno type="halauthorid" notation="string">666975-1007211</idno>
                  <affiliation ref="#struct-75882"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Ángel</forename>
                    <surname>Fernández-Herrero</surname>
                  </persName>
                  <email type="md5">7e4b2507e4e918063f3867ff7c837624</email>
                  <email type="domain">die.upm.es</email>
                  <idno type="idhal" notation="numeric">1007212</idno>
                  <idno type="halauthorid" notation="string">1165548-1007212</idno>
                  <affiliation ref="#struct-302798"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Juan</forename>
                    <forename type="middle">A.</forename>
                    <surname>López</surname>
                  </persName>
                  <email type="md5">6e119c62d9024d7d423924e649fe1d9e</email>
                  <email type="domain">die.upm.es</email>
                  <idno type="idhal" notation="numeric">1007213</idno>
                  <idno type="halauthorid" notation="string">1165549-1007213</idno>
                  <affiliation ref="#struct-302798"/>
                </author>
                <author role="aut">
                  <persName>
                    <forename type="first">Carlos</forename>
                    <surname>Carreras</surname>
                  </persName>
                  <email type="md5">a2f91af921e111af6022579e441e8c28</email>
                  <email type="domain">die.upm.es</email>
                  <idno type="idhal" notation="numeric">1007214</idno>
                  <idno type="halauthorid" notation="string">1165550-1007214</idno>
                  <affiliation ref="#struct-302798"/>
                </author>
              </analytic>
              <monogr>
                <title level="m">IFIP Advances in Information and Communication Technology</title>
                <meeting>
                  <title>18th International Conference on Very Large Scale Integration (VLSISOC)</title>
                  <date type="start">2010-09-27</date>
                  <date type="end">2010-09-29</date>
                  <settlement>Madrid</settlement>
                  <country key="ES">Spain</country>
                </meeting>
                <editor>José L. Ayala</editor>
                <editor>David Atienza Alonso</editor>
                <editor>Ricardo Reis</editor>
                <imprint>
                  <publisher>Springer</publisher>
                  <biblScope unit="serie">VLSI-SoC: Forward-Looking Trends in IC and Systems Design</biblScope>
                  <biblScope unit="volume">AICT-373</biblScope>
                  <biblScope unit="pp">182-205</biblScope>
                  <date type="datePub">2012</date>
                </imprint>
              </monogr>
              <idno type="doi">10.1007/978-3-642-28566-0_8</idno>
            </biblStruct>
          </sourceDesc>
          <profileDesc>
            <langUsage>
              <language ident="en">English</language>
            </langUsage>
            <textClass>
              <keywords scheme="author">
                <term xml:lang="en">Signal-to-Quantization-Noise Ratio</term>
                <term xml:lang="en">Error Estimation</term>
                <term xml:lang="en">Affine Arithmetic</term>
                <term xml:lang="en">Word-Length</term>
                <term xml:lang="en">Quantization</term>
                <term xml:lang="en">Digital Signal Processing</term>
                <term xml:lang="en">Fixed-Point Optimization</term>
              </keywords>
              <classCode scheme="halDomain" n="info">Computer Science [cs]</classCode>
              <classCode scheme="halTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halOldTypology" n="COMM">Conference papers</classCode>
              <classCode scheme="halTreeTypology" n="COMM">Conference papers</classCode>
            </textClass>
            <abstract xml:lang="en">
              <p>In this chapter, the fast fixed-point optimization of Digital Signal Processing (DSP) algorithms is addressed. A fast quantization noise estimator is presented. The estimator enables a significant reduction in the computation time required to perform complex fixed-point optimizations, while providing a high accuracy. Also, a methodology to perform fixed-point optimization is developed.Affine Arithmetic (AA) is used to provide a fast Signal-to-Quantization Noise-Ratio (SQNR) estimation that can be used during the fixed-point optimization stage. The fast estimator covers differentiable non-linear algorithms with and without feedbacks. The estimation is based on the parameterization of the statistical properties of the noise at the output of fixed-point algorithms. This parameterization allows relating the fixed-point formats of the signals to the output noise distribution by means of fast matrix operations. Thus, a fast estimation is achieved and the computation time of the fixed-point optimization process is significantly reduced.The proposed estimator and the fixed-point optimization methodology are tested using a subset of non-linear algorithms, such as vector operations, IIR filter for mean power computation, adaptive filters – for both linear and non-linear system identification – and a channel equalizer. The computation time of fixed-point optimization is boosted by three orders of magnitude while keeping the average estimation error down to 6% in most cases.</p>
            </abstract>
            <particDesc>
              <org type="consortium">TC 10</org>
              <org type="consortium">WG 10.5</org>
            </particDesc>
          </profileDesc>
        </biblFull>
      </listBibl>
    </body>
    <back>
      <listOrg type="structures">
        <org type="department" xml:id="struct-75882" status="VALID">
          <orgName>Department of Ingenierı ́a de Sistemas Electronicos y de Telecomunicacion [San Pablo]</orgName>
          <desc>
            <address>
              <addrLine>Campus Urb. Monteprıncipe s/n, 28668 Boadilla del Monte, Madrid</addrLine>
              <country key="ES"/>
            </address>
          </desc>
          <listRelation>
            <relation active="#struct-320244" type="direct"/>
          </listRelation>
        </org>
        <org type="institution" xml:id="struct-302798" status="VALID">
          <idno type="ROR">https://ror.org/03n6nwv02</idno>
          <orgName>Universidad Politécnica de Madrid</orgName>
          <orgName type="acronym">UPM</orgName>
          <desc>
            <address>
              <addrLine>Calle Ramiro de Maeztu, 7, 28040 Madrid</addrLine>
              <country key="ES"/>
            </address>
            <ref type="url">http://www.upm.es</ref>
          </desc>
        </org>
        <org type="institution" xml:id="struct-320244" status="VALID">
          <orgName>University of San Pablo</orgName>
          <desc>
            <address>
              <country key="ES"/>
            </address>
          </desc>
        </org>
      </listOrg>
    </back>
  </text>
</TEI>