<?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>S1405-55462012000200011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Filtro digital adaptivo integrado]]></article-title>
<article-title xml:lang="en"><![CDATA[Integrated Digital Adaptive Filter]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zagaceta Álvarez]]></surname>
<given-names><![CDATA[María Teresa]]></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 Ciencia Aplicada y Tecnología Avanzada ]]></institution>
<addr-line><![CDATA[ DF]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación en Computación ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2012</year>
</pub-date>
<volume>16</volume>
<numero>2</numero>
<fpage>255</fpage>
<lpage>260</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462012000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462012000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462012000200011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este documento se presenta el estudio de algunas técnicas de filtrado digital de señales para determinar cuál ofrece la mayor convergencia aplicada en sistemas lineales invariantes en el tiempo como: el método de mínimos cuadrados y el de gradiente estocástico, usando modelos ARMA (1) ("autoregresive moving average", modelos de primer orden estocásticos y descritos de manera recursiva). Se enfatiza en el análisis de las técnicas de filtrado adaptivo, desarrollando algoritmos que permiten identificar y estimar parámetros de manera integrada dentro de un sistema visto como caja negra de tal forma que sea posible conceptualizar su nivel de convergencia y mejorar los algoritmos que actualmente se utilizan en esta importante área que interviene tanto en visión artificial, como en sistemas de control complejos en los que se requiere de la predicción, descripción y reconstrucción de información. Los algoritmos presentados aquí se han desarrollado de manera analítica en base a la literatura citada y a las herramientas matemáticas necesarias, todos ellos simulados en Matlab.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[This thesis presents a study of various techniques of digital signal filtering to determine which provides greater convergence when applied to time-invariant linear systems such as the least squares and the stochastic gradient method, using in all of them the ARMA (1) models (autoregressive moving average, first-order stochastic model). We have made emphasis in the analysis of adaptive filtering techniques to develop algorithms that allow us to identify and estimate parameters integrated within a system seen as a black box, in such a manner that it becomes possible to conceptualize their level of convergence and to improve algorithms that are currently used in this important area that is involved in both artificial vision and complex control systems, where information prediction, description and reconstruction are required. The algorithms presented here have been developed in an analytical manner on the basis of cited literature and the necessary mathematical tools. All of them were simulated using MathLab.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Filtro adaptivo]]></kwd>
<kwd lng="es"><![CDATA[error funcional]]></kwd>
<kwd lng="es"><![CDATA[gradiente estocástico]]></kwd>
<kwd lng="es"><![CDATA[sistema de referencia]]></kwd>
<kwd lng="en"><![CDATA[Adaptive filter]]></kwd>
<kwd lng="en"><![CDATA[functional error]]></kwd>
<kwd lng="en"><![CDATA[stochastic gradient]]></kwd>
<kwd lng="en"><![CDATA[reference system]]></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>Filtro digital adaptivo integrado</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="3"><b>Integrated Digital Adaptive Filter</b></font></p>  	    <p align="center"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>Mar&iacute;a Teresa Zagaceta &Aacute;lvarez<sup>1</sup> y Jos&eacute; de Jes&uacute;s Medel Ju&aacute;rez<sup>2</sup></b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><sup><i>1</i></sup> <i>Centro de Investigaci&oacute;n en Ciencia Aplicada y Tecnolog&iacute;a Avanzada (CICATA&#45;Legaria), Instituto Polit&eacute;cnico Nacional, DF, M&eacute;xico</i> <a href="mailto:mtza79@yahoo.com.mx">mtza79@yahoo.com.mx</a></font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><sup><i>2</i></sup> <i>Centro de Investigaci&oacute;n en Computaci&oacute;n, Instituto Polit&eacute;cnico Nacional, DF, M&eacute;xico</i> <a href="mailto:jjmedelj@yahoo.com.m">jjmedelj@yahoo.com.mx</a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">Art&iacute;culo recibido el 10/02/2010.    <br> 	Aceptado el 04/10/2011.</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>  	    <p align="justify"><font face="verdana" size="2">En este documento se presenta el estudio de algunas t&eacute;cnicas de filtrado digital de se&ntilde;ales para determinar cu&aacute;l ofrece la mayor convergencia aplicada en sistemas lineales invariantes en el tiempo como: el m&eacute;todo de m&iacute;nimos cuadrados y el de gradiente estoc&aacute;stico, usando modelos ARMA (1) ("autoregresive moving average", modelos de primer orden estoc&aacute;sticos y descritos de manera recursiva). Se enfatiza en el an&aacute;lisis de las t&eacute;cnicas de filtrado adaptivo, desarrollando algoritmos que permiten identificar y estimar par&aacute;metros de manera integrada dentro de un sistema visto como caja negra de tal forma que sea posible conceptualizar su nivel de convergencia y mejorar los algoritmos que actualmente se utilizan en esta importante &aacute;rea que interviene tanto en visi&oacute;n artificial, como en sistemas de control complejos en los que se requiere de la predicci&oacute;n, descripci&oacute;n y reconstrucci&oacute;n de informaci&oacute;n. Los algoritmos presentados aqu&iacute; se han desarrollado de manera anal&iacute;tica en base a la literatura citada y a las herramientas matem&aacute;ticas necesarias, todos ellos simulados en Matlab.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Palabras clave.</b> Filtro adaptivo, error funcional, gradiente estoc&aacute;stico, sistema de referencia.</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>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">This thesis presents a study of various techniques of digital signal filtering to determine which provides greater convergence when applied to time&#45;invariant linear systems such as the least squares and the stochastic gradient method, using in all of them the ARMA (1) models (autoregressive moving average, first&#45;order stochastic model). We have made emphasis in the analysis of adaptive filtering techniques to develop algorithms that allow us to identify and estimate parameters integrated within a system seen as a black box, in such a manner that it becomes possible to conceptualize their level of convergence and to improve algorithms that are currently used in this important area that is involved in both artificial vision and complex control systems, where information prediction, description and reconstruction are required. The algorithms presented here have been developed in an analytical manner on the basis of cited literature and the necessary mathematical tools. All of them were simulated using MathLab.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords.</b> Adaptive filter, functional error, stochastic gradient, reference system.</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/v16n2/v16n2a11.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"><b>1. Ram&iacute;rez&#45;Gonz&aacute;lez, A. &amp; Fern&aacute;ndez&#45;Rubio, J.A. (2003).</b> Estudio y Modelado de Errores en Sistemas Inerciales para Navegaci&oacute;n Terrestre. <i>XVIII Simposium Nacional de la Uni&oacute;n Cient&iacute;fica Internacional de Radio (URSI 2003)</i> La Coru&ntilde;a, Espa&ntilde;a, 1&#150;4. Retrieved from: <a href="http://w3.iec.csic.es/ursi/articulos_modernos/articulos_coruna_2003/actas_pdf/SESION%202/S2.%20Aula%202.5/1620%20-%20ESTUDIO%20Y%20MODELADO.pdf" target="_blank">http://w3.iec.csic.es/ursi/articulos_modernos/articulos_coruna_2003/actas_pdf/SESION%202/S2.%20Aula%202.5/1620%20&#45;%20ESTUDIO%20Y%20MODELADO.pdf</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056153&pid=S1405-5546201200020001100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2"><b>2. Benchaib</b> , <b>A., Tadjine ,M., &amp; Rachid, A. (1999).</b> Sliding mode control of an induction motor with unknown load: application on a digital&#45;signal&#45;processor&#45;based system. <i>International Journal of Systems Science</i> , 30(8), 849&#150;863.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056155&pid=S1405-5546201200020001100002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<!-- ref --><p align="justify"><font face="verdana" size="2"><b>3. Medel, J. J. (2002).</b> An&aacute;lisis de Dos M&eacute;todos de Estimaci&oacute;n para Sistemas Lineales Estacionares e Invariantes en el Tiempo con Perturbaciones Correlacionadas con el Estado Observable del Tipo: Una Entrada una Salida. <i>Computaci&oacute;n y Sistemas</i>, 5(3), 215&#150;222. Retrieved from: <a href="http://www.cic.ipn.mx/portalCIC/s11/vol05-03/CYS05305.pdf" target="_blank">http://www.cic.ipn.mx/portalCIC/s11/vol05&#45;03/CYS05305.pdf</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056157&pid=S1405-5546201200020001100003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2"><b>4. Vega, L. R., Tressens, S., &amp; Rey, H. (2006).</b> Adaptive filtering using projection onto convex sets. <i>Latin American applied research,</i> 36(2), 123&#150;127.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056159&pid=S1405-5546201200020001100004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2"><b>5. Julier, S. J. &amp; Uhlmann, J.K. (1997).</b> A New Extension of the Kalman Filter to Nonlinear Systems. 11th <i>International Symposium on Aerospace/Defence Sensing, Simulation and Controls</i>, Orlando, FL, USA. Retrieved from: <a href="http://www.cs.berkeley.edu/~pabbeel/cs287-fa09/readings/JulierUhlmann-UKF.pdf" target="_blank">http://www.cs.berkeley.edu/~pabbeel/cs287&#45;fa09/readings/JulierUhlmann&#45;UKF.pdf</a>.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056161&pid=S1405-5546201200020001100005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2"><b>6. Cram&eacute;r, H. &amp; Leadbetter, M.R. (1967).</b> <i>Stationary and related Stochastic Process: Sample function properties and theirs applications,</i> New York: Wiley.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056163&pid=S1405-5546201200020001100006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    <!-- ref --><p align="justify"><font face="verdana" size="2"><b>7. Zagaceta, M. T. &amp; Medel, J.J. (2009).</b> Identification first order stochastic system with estimation parameters: recursive description. 8th WSEAS <i>International Conference on Signal Processing, Robotics and Automation</i>, Cambridge, UK, 299&#150;303.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=2056165&pid=S1405-5546201200020001100007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Notas</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Resumen extendido de tesis doctoral. Graduada: Mar&iacute;a Teresa Zagaceta &Aacute;lvarez. Director: Jos&eacute; de Jes&uacute;s Medel Ju&aacute;rez. Fecha de graduaci&oacute;n: 16/12/2009.</font></p>  	    <p align="justify"><font face="verdana" size="2">Extended abstract of PhD thesis. Graduated: Mar&iacute;a Teresa Zagaceta &Aacute;lvarez. Advisor: Jos&eacute; de Jes&uacute;s Medel Ju&aacute;rez. Graduation date: 16/12/2009.</font></p>      ]]></body><back>
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