<?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>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2011000500005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Identificador con comparación entre dos estimadores]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medel Juárez]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Infante]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Urbieta Parrazales]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Centro de Investigación en Computación  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="A02">
<institution><![CDATA[,Escuela Profesional de Ingeniería Mecánica y Eléctrica  ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>11</day>
<month>10</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>11</day>
<month>10</month>
<year>2011</year>
</pub-date>
<volume>57</volume>
<numero>5</numero>
<fpage>414</fpage>
<lpage>420</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2011000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2011000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2011000500005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este artículo se hace una descripción del proceso de identificación considerado como un filtro digital adaptivo en el que es necesario contar con: la función de transición estimada, el error de identificación y la función de ganancia. Lo que genera un problema con respecto a la evolución del sistema de referencia por el tiempo de procesamiento del filtrado al requerir cumplir con sus operaciones dentro del mismo intervalo de tiempo. En términos generales, la calidad de su respuesta se ve afectada por el parámetro usado en la función de transición estimada al intervenir este de manera indirecta en las demás operaciones del filtrado. Esto dio origen a probar dos estimadores, el primero expresado de manera recursiva y el segundo seleccionando la ganancia dentro de una base de conocimiento de acuerdo con la lógica difusa. Los resultados muestran que ambos estimadores dentro del identificador cuentan con buena convergencia con diferencias de error mínimas que permiten su aproximación a las condiciones estocásticas del modelo en el tiempo para k muestreos, utilizando al MatLab® como software de simulación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[This paper describes the identification process as an adaptive digital filter using the estimated transition matrix, identification error and gain functions. Óne problem that the filter has is the time process, affecting the quality response and agreeing with the estimated transition function, which is a condition to be accomplished with respect to the reference time evolution system. Thus, the time process required must be met in all operations within the same time interval. Generally, the identifier filter answer is affected by the parameter used in the estimated transition function indirectly used in the other filter operations. In this case, seeking a better time estimation response two estimators were considered: the first expressed in a recursive form and the second, selected within the knowledge base gain used in accordance to fuzzy logic. The results show the convergence observed in the error differences and their approximations to the stochastic time model conditions with k samples, using, MatLab® as a simulation software.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Modelación y simulación computacional]]></kwd>
<kwd lng="es"><![CDATA[algoritmos para la aproximación de funcionales]]></kwd>
<kwd lng="es"><![CDATA[procesos estocásticos]]></kwd>
<kwd lng="es"><![CDATA[lógica difusa]]></kwd>
<kwd lng="es"><![CDATA[inteligencia artificial]]></kwd>
<kwd lng="en"><![CDATA[Computer modeling and simulation]]></kwd>
<kwd lng="en"><![CDATA[algorithms for functional approximation]]></kwd>
<kwd lng="en"><![CDATA[stochastic processes]]></kwd>
<kwd lng="en"><![CDATA[fuzzy logic]]></kwd>
<kwd lng="en"><![CDATA[artificial intelligence]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="4"><b>Identificador con comparaci&oacute;n entre dos estimadores</b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="center"><font face="verdana" size="2"><b>J.J. Medel Ju&aacute;rez&ordf;, J.C. Garc&iacute;a Infante<sup>b</sup> y R. Urbieta Parrazales<sup>c</sup></b></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>c</sup> Centro de Investigaci&oacute;n en Computaci&oacute;n, Calle Venus S/N, Col. Nueva Industrial Vallejo, 07738, e&#45;mail:</i> <a href="mailto:jjmedelj@yahoo.com.mx"><i>jjmedelj@yahoo.com.mx</i></a></font></p>  	    <p align="justify"><font face="verdana" size="2"><i><sup>b</sup>Escuela Profesional de Ingenier&iacute;a Mec&aacute;nica y El&eacute;ctrica, Av. Santa Ana No. 1000, Col. San Francisco Culhuac&aacute;n, M&eacute;xico D.F. M&eacute;xico, e&#45;mail:</i> <a href="mailto:jcnet21@yahoo.com"><i>jcnet21@yahoo.com</i></a></font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">Recibido el 8 de marzo de 2011;    <br> 	aceptado el 10 de agosto de 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 art&iacute;culo se hace una descripci&oacute;n del proceso de identificaci&oacute;n considerado como un filtro digital adaptivo en el que es necesario contar con: la funci&oacute;n de transici&oacute;n estimada, el error de identificaci&oacute;n y la funci&oacute;n de ganancia. Lo que genera un problema con respecto a la evoluci&oacute;n del sistema de referencia por el tiempo de procesamiento del filtrado al requerir cumplir con sus operaciones dentro del mismo intervalo de tiempo. En t&eacute;rminos generales, la calidad de su respuesta se ve afectada por el par&aacute;metro usado en la funci&oacute;n de transici&oacute;n estimada al intervenir este de manera indirecta en las dem&aacute;s operaciones del filtrado. Esto dio origen a probar dos estimadores, el primero expresado de manera recursiva y el segundo seleccionando la ganancia dentro de una base de conocimiento de acuerdo con la l&oacute;gica difusa. Los resultados muestran que ambos estimadores dentro del identificador cuentan con buena convergencia con diferencias de error m&iacute;nimas que permiten su aproximaci&oacute;n a las condiciones estoc&aacute;sticas del modelo en el tiempo para <i>k</i> muestreos, utilizando al MatLab<sup>&reg;</sup> como software de simulaci&oacute;n.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Descriptores</b><i>:</i> Modelaci&oacute;n y simulaci&oacute;n computacional; algoritmos para la aproximaci&oacute;n de funcionales; procesos estoc&aacute;sticos; l&oacute;gica difusa; inteligencia artificial.</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 paper describes the identification process as an adaptive digital filter using the estimated transition matrix, identification error and gain functions. &Oacute;ne problem that the filter has is the time process, affecting the quality response and agreeing with the estimated transition function, which is a condition to be accomplished with respect to the reference time evolution system. Thus, the time process required must be met in all operations within the same time interval. Generally, the identifier filter answer is affected by the parameter used in the estimated transition function indirectly used in the other filter operations. In this case, seeking a better time estimation response two estimators were considered: the first expressed in a recursive form and the second, selected within the knowledge base gain used in accordance to fuzzy logic. The results show the convergence observed in the error differences and their approximations to the stochastic time model conditions with <i>k</i> samples, using, MatLab<sup>&reg;</sup> as a simulation software.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Keywords</b>: Computer modeling and simulation; algorithms for functional approximation; stochastic processes; fuzzy logic; artificial intelligence.</font></p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2">PACS: 07.05Tp; 02.60 Gf; 02.50.Ey; 07.05.Mh</font></p>  	    <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v57n5/v57n5a5.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. J. Abonyi, <i>Fuzzy Model Identification for Control</i> (Birkhauser Boston 2003) pp. 1&#45;16.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371682&pid=S0035-001X201100050000500001&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">2. J. C. Bertein y R. Cesch, <i>Discrete Stochastic Processes and Optimal Filtering</i> (Great Britain and the United States in 2007 by ISTE 2007) USA, pp. 218&#45;222.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371684&pid=S0035-001X201100050000500002&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">3. N. Boccara, <i>Modeling Complex Systems</i> (Springer&#45;Verlag, 2004).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371686&pid=S0035-001X201100050000500003&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">4. G. H. Dehling, T. Gottschalk y A. C. Hoffmann, <i>Stochastic Modeling in Process Technology</i> (Elsevier 2007) p. 2.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371688&pid=S0035-001X201100050000500004&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">5. J. R. Elliott, J. B. Moore y L. Aggoun, <i>Hidden Markov Models: Estimation and Control</i> (Springer 2008) pp. 74&#45;75.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371690&pid=S0035-001X201100050000500005&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">6. J. C. Garc&iacute;a, J. Medel y P. Guevara, <i>WSEAS Transactions on Systems and Control p.</i> 133 (2008) Canada.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371692&pid=S0035-001X201100050000500006&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">7. M. Gerdin, <i>Identification and Estimation for Models Described by Differential&#45;Algebraic Equations</i> (LiU&#45;Tryck 2006) Sweden, pp. 12&#45;13.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371694&pid=S0035-001X201100050000500007&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">8. S. Haykin, <i>Adaptive Filtering</i> (Prentice Hall, U.S.A. 2001)</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=8371696&pid=S0035-001X201100050000500008&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">9. G. Hendeby, <i>Fundamental Estimation and Detection Limits in Linear Non&#45;Gaussian Systems</i> (LiU&#45;Tryck 2005) Sweden, pp. 29&#45;30.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371697&pid=S0035-001X201100050000500009&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">10. J. J. Medel, J. C. Garc&iacute;a y P. Guevara, <i>Automatic Control and Computer Sciences AVT</i> 42 (2008) 26&#45;34, Rusia.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371699&pid=S0035-001X201100050000500010&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">11 . J. F. Rojas, M. A. Morales, A. Rangel y I. Torres, <i>Rev. Mex. Fis.</i> 55 (2009) 1.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371701&pid=S0035-001X201100050000500011&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">12. I. S&aacute;nchez, <i>Filtrado Adaptivo para Sistemas AR de 1er Orden,</i> Tesis, (Centro de Investigation en Computation 2011) pp. 5559.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371703&pid=S0035-001X201100050000500012&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">13. T. Takagi, y M. Sugeno, <i>IEEE Transaction and Systems, man, and cybernetics</i> 15 (1986) 116&#45;132.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371705&pid=S0035-001X201100050000500013&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">14. P. P. Vaidyanathan, <i>The Theory of Linear Prediction, Autoregressive Modeling</i> (Morgan &amp; Claypool publishers 2008) p. 5.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371707&pid=S0035-001X201100050000500014&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">15. L. Zadeh, Fuzzy Sets, <i>Information and control</i> 8 (1965) 338&#45;353.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8371709&pid=S0035-001X201100050000500015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
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