<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462005000100008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Filtrado Digital en Tiempo Real: Análisis Computacional para Estimación de Parámetros en Sistemas Estocásticos Lineales Estacionarios]]></article-title>
<article-title xml:lang="en"><![CDATA[Real-time Digital Filtering: Computational Analysis for Parameters Estimation in Stationary Linear Stochastic Systems]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara López]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medel Juárez]]></surname>
<given-names><![CDATA[José de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación en Computación ]]></institution>
<addr-line><![CDATA[ D. F.]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación en Innovación Tecnológica ]]></institution>
<addr-line><![CDATA[ D.F.]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2005</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2005</year>
</pub-date>
<volume>8</volume>
<numero>3</numero>
<fpage>252</fpage>
<lpage>264</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462005000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462005000100008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462005000100008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se describe el Filtrado Digital en Tiempo Real para estimación de parámetros en sistemas estocásticos lineales estacionarios; sus características temporales y de respuesta en forma local y global. Se presentan ejemplos con las técnicas de Variable Instrumental, Factor de Olvido Matricial y como caso especial el algoritmo Modos Deslizantes Tradicional. Los aportes de esta tesis son: - Formalización de los conceptos de Filtrado Digital en Tiempo Real para estimación de parámetros en sistemas estocásticos lineales estacionarios, - Definición de las características locales y globales en calidad de respuesta y tiempo de los FDTR y FDMTR: &#8226; Características de las tareas, &#8226; Sincronía, &#8226; Periodos de muestreo, &#8226; Tiempos de convergencia, - Análisis computacional temporal de los FDMTR en función del tamaño de la matriz de parámetros a estimar. - Procedimiento de implantación de un FDTR en un sistema operativo de tiempo real.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[This doctoral thesis describe RTDF concepts by parameter estimators to stochastic stationary linear systems and it expose temporal and response quality characteristics in local and global form. Finally, I present examples of Instrumental Variable, Matrix Forgetting Factor and Sliding Modes Traditional techniques in SISO and MIMO cases. The advances in this thesis are: - Formal definition of Real Time Digital Filters to parameter estimation of stationary lineal stochastic systems by RTDF and RTMDF concepts, - Definition of local and global properties in response quality and time quality in RTDF and RTMDF: &#8226; Tasks characterization, &#8226; Synchrony, &#8226; Sample periods, &#8226; Convergence times, - Temporal computational analysis of RTMDF by size of parameters matrix. - Implantation of RTDF and RTMDF in a real time operating system.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Filtro Digital]]></kwd>
<kwd lng="es"><![CDATA[estimación]]></kwd>
<kwd lng="es"><![CDATA[convergencia]]></kwd>
<kwd lng="es"><![CDATA[restricción]]></kwd>
<kwd lng="es"><![CDATA[Tiempo Real]]></kwd>
<kwd lng="en"><![CDATA[Digital Filter]]></kwd>
<kwd lng="en"><![CDATA[estimation]]></kwd>
<kwd lng="en"><![CDATA[convergence]]></kwd>
<kwd lng="en"><![CDATA[constraint]]></kwd>
<kwd lng="en"><![CDATA[Real Time]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Resumen de tesis doctoral</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Filtrado Digital en Tiempo Real: An&aacute;lisis Computacional para Estimaci&oacute;n de Par&aacute;metros en Sistemas Estoc&aacute;sticos Lineales Estacionarios</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b><i>Real&#150;time Digital Filtering: Computational Analysis for Parameters Estimation in Stationary Linear Stochastic Systems</i></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Graduado: Pedro Guevara L&oacute;pez    <br> </b><i>Centro de Investigaci&oacute;n en Computaci&oacute;n &#150; IPN    <br> Av. Juan de Dios B&aacute;tiz sn esq. Miguel Oth&oacute;n de Mendiz&aacute;bal     <br>   C. P. 07738 M&eacute;xico D. F.,</i>    ]]></body>
<body><![CDATA[<br>   <a href="mailto:pguevara@df1.telmex.net.mx">pguevara@df1.telmex.net.mx</a></font></p>     <p align="justify"><font face="verdana" size="2"><b>Director de Tesis: Jos&eacute; de Jes&uacute;s Medel Ju&aacute;rez    <br> </b><i>Centro de Investigaci&oacute;n en Innovaci&oacute;n Tecnol&oacute;gica &#150; IPN    <br> Cerrada CECATI s/n. Col. Santa Catarina     <br>   C.P. 02250 Azcapotzalco, D.F.</i>    <br> <a href="mailto:jjmedel@pollux.cic.ipn.mx">jjmedel@pollux.cic.ipn.mx</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2">Graduado en septiembre 01, 2004</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Se describe el Filtrado Digital en Tiempo Real para estimaci&oacute;n de par&aacute;metros en sistemas estoc&aacute;sticos lineales estacionarios; sus caracter&iacute;sticas temporales y de respuesta en forma local y global. Se presentan ejemplos con las t&eacute;cnicas de Variable Instrumental, Factor de Olvido Matricial y como caso especial el algoritmo Modos Deslizantes Tradicional. Los aportes de esta tesis son:</font></p>     <p align="justify"><font face="verdana" size="2">&#150; Formalizaci&oacute;n de los conceptos de   Filtrado Digital en Tiempo Real para estimaci&oacute;n de par&aacute;metros en sistemas estoc&aacute;sticos lineales estacionarios,</font></p>     <p align="justify"><font face="verdana" size="2">&#150; Definici&oacute;n de las caracter&iacute;sticas locales y globales en calidad de respuesta y tiempo de los FDTR y FDMTR:</font></p>     <blockquote>       <p align="justify"><font face="verdana" size="2"> &bull; Caracter&iacute;sticas de las tareas,</font></p>       <p align="justify"><font face="verdana" size="2">&bull; Sincron&iacute;a, </font></p>       <p align="justify"><font face="verdana" size="2">&bull; Periodos de muestreo, </font></p>       <p align="justify"><font face="verdana" size="2">&bull; Tiempos de convergencia,</font></p> </blockquote>     <p align="justify"><font face="verdana" size="2">&#150; An&aacute;lisis computacional temporal de los FDMTR en funci&oacute;n del tama&ntilde;o de la matriz de par&aacute;metros a estimar.</font></p>     <p align="justify"><font face="verdana" size="2">&#150;&nbsp; Procedimiento de implantaci&oacute;n de un FDTR en un sistema operativo de tiempo real. </font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><b>Palabras clave: </b>Filtro Digital, estimaci&oacute;n, convergencia, restricci&oacute;n, Tiempo Real.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">This doctoral thesis describe RTDF concepts by parameter estimators to stochastic stationary linear systems and it expose temporal and response quality characteristics in local and global form. Finally, I present examples of Instrumental Variable, Matrix Forgetting Factor and Sliding Modes Traditional techniques in SISO and MIMO cases. The advances in this thesis are:</font></p>     <p align="justify"><font face="verdana" size="2">&#150; Formal definition of Real Time Digital Filters to parameter estimation of stationary lineal stochastic systems by RTDF and RTMDF concepts,</font></p>     <p align="justify"><font face="verdana" size="2">&#150; Definition of local and global properties in response quality and time quality in RTDF and RTMDF:</font></p>     <blockquote>       <p align="justify"><font face="verdana" size="2">&bull; Tasks characterization,</font></p>       <p align="justify"><font face="verdana" size="2">&bull; Synchrony,</font></p>       <p align="justify"><font face="verdana" size="2">&bull; Sample periods,</font></p>       ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&bull; Convergence times,</font></p> </blockquote>     <p align="justify"><font face="verdana" size="2">&#150; Temporal computational analysis of RTMDF by size of parameters matrix.</font></p>     <p align="justify"><font face="verdana" size="2">&#150; Implantation of RTDF and RTMDF in a real time operating system. </font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Digital Filter, estimation, convergence, constraint, Real Time.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/cys/v8n3/v8n3a8.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. <b>Baras J., </b><i>"Symbolic and numeric Real&#150;time signal processing", </i>Technical Report University of Maryland, USA. pp 226, 1999.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2048839&pid=S1405-5546200500010000800001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. <b>Brookshear G. </b><i>"Teor&iacute;a de la Computaci&oacute;n. 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