<?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>0188-9532</journal-id>
<journal-title><![CDATA[Revista mexicana de ingeniería biomédica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. ing. bioméd]]></abbrev-journal-title>
<issn>0188-9532</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Ingeniería Biomédica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-95322024000300006</article-id>
<article-id pub-id-type="doi">10.17488/rmib.45.3.1</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Real-Valued Kalman Estimation Method for Harmonic Signal Analysis in Biomedical Applications]]></article-title>
<article-title xml:lang="es"><![CDATA[Análisis de Señales Biomédicas por Medio del Método de Estimación Armónica de Kalman con un Modelo de Valores Reales]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Maldonado]]></surname>
<given-names><![CDATA[Johnny]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Platas-Garza]]></surname>
<given-names><![CDATA[Miguel Angel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zambrano-Serrano]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León  ]]></institution>
<addr-line><![CDATA[ Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>45</volume>
<numero>3</numero>
<fpage>6</fpage>
<lpage>19</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-95322024000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-95322024000300006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-95322024000300006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This work presents a methodology for obtaining the harmonic estimation of biomedical signals such as electrocardiogram, cardiorespiratory and blood pressure signals. The proposed methodology is achieved using polynomial approximation and the Kalman filter. As advantage, the technique includes instant estimations of signal harmonics and its derivatives using a real-valued model. Furthermore, a comparison of the results is conducted with the Savitzky-Gola, nonlinear tracking differentiator methods, extended state observer and digital differentiator base on Taylor series. The results suggest that the proposed method has the potential to enhance the quality of signal measurements, especially in the presence of noise.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Este trabajo presenta una metodología para obtener la estimación armónica de señales biomédicas como señales de electrocardiograma, cardiorrespiratorias y de presión arterial. La metodología propuesta utiliza la aproximación polinomial y el filtro de Kalman. Como ventaja, la técnica incluye estimaciones instantáneas de las armónicas de la señal y sus derivadas utilizando un modelo con parámetros en los reales. Además, se realiza una comparación de los resultados con los métodos de Savitzky-Golay, el diferenciador de seguimiento no lineal, observador de estados extendido y diferenciador digital basado en series de Taylor. Los resultados sugieren que el método propuesto tiene el potencial de mejorar la calidad de las mediciones de señales, especialmente en presencia de ruido.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[biomedical signal analysis]]></kwd>
<kwd lng="en"><![CDATA[harmonics estimates in ECG]]></kwd>
<kwd lng="en"><![CDATA[derivative estimation in biomedical signals]]></kwd>
<kwd lng="es"><![CDATA[análisis de señales biomédicas]]></kwd>
<kwd lng="es"><![CDATA[estimación armónica en señales biomédicas]]></kwd>
<kwd lng="es"><![CDATA[estimación de derivadas en señales biomédicas]]></kwd>
</kwd-group>
</article-meta>
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