<?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>S0035-001X2020000300364</article-id>
<article-id pub-id-type="doi">10.31349/revmexfis.66.364</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Synchronization of fractional-order Lü chaotic oscillators for voice encryption]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Sepúlveda]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Posadas-Castillo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cortés-Preciado]]></surname>
<given-names><![CDATA[A.D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Platas-Garza]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garza-González]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[Allan G. S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Facultad de Ingeniería Mecánica y Eléctrica ]]></institution>
<addr-line><![CDATA[San Nicolás de los Garza ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Consejo Nacional Ciencia y Tecnología  ]]></institution>
<addr-line><![CDATA[Celaya Gto.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>66</volume>
<numero>3</numero>
<fpage>364</fpage>
<lpage>371</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2020000300364&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2020000300364&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2020000300364&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this paper, the encryption improvement via modulation of the fractional-order chaotic oscillators state variables is presented. A network of N-coupled fractional-order Lü chaotic oscillators, is synchronized. A voice message is encrypted, via additive encryption, by using a state variable of the synchronized network. The selected state variable is modulated and used to encrypt the message again. The results are compared.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este artículo, se presenta la mejora de la calidad de encriptado mediante la modulación de las variables de estado de osciladores caóticos de orden fraccionario. Se sincroniza una red de N osciladores caóticos Lü de orden fraccionarios acoplados. Se encripta un mensaje de voz mediante encriptado aditivo, utilizando una variable de estado de la red sincronizada. La variable de estado seleccionada se modula y se utiliza para cifrar el mensaje nuevamente. Se comparan los resultados.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Non-linear systems]]></kwd>
<kwd lng="en"><![CDATA[fractional order]]></kwd>
<kwd lng="en"><![CDATA[chaos]]></kwd>
<kwd lng="en"><![CDATA[synchronization]]></kwd>
<kwd lng="en"><![CDATA[encryption]]></kwd>
<kwd lng="en"><![CDATA[modulation]]></kwd>
<kwd lng="es"><![CDATA[Sistemas no lineales]]></kwd>
<kwd lng="es"><![CDATA[orden fraccionario]]></kwd>
<kwd lng="es"><![CDATA[caos]]></kwd>
<kwd lng="es"><![CDATA[sincronización]]></kwd>
<kwd lng="es"><![CDATA[encriptado]]></kwd>
<kwd lng="es"><![CDATA[modulación]]></kwd>
<kwd lng="en"><![CDATA[05.45.-a]]></kwd>
<kwd lng="en"><![CDATA[05.45.Gg]]></kwd>
<kwd lng="en"><![CDATA[05.45.Pq]]></kwd>
<kwd lng="en"><![CDATA[05.45.Vx]]></kwd>
<kwd lng="en"><![CDATA[05.45.Xt]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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