{"id":72469,"date":"2018-03-09T23:17:14","date_gmt":"2018-03-09T23:17:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/algoritmos-de-convergencia-rapida-para-control-activo-de-ruido\/"},"modified":"2018-03-09T23:17:14","modified_gmt":"2018-03-09T23:17:14","slug":"algoritmos-de-convergencia-rapida-para-control-activo-de-ruido","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/diseno-de-filtros\/algoritmos-de-convergencia-rapida-para-control-activo-de-ruido\/","title":{"rendered":"Algoritmos de convergencia r\u00e1pida para control activo de ruido"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Luis Vicente Borruel <\/strong><\/h2>\n<p>La presente tesis doctoral trata del estudio de algoritmos adaptativos de procesado de se\u00f1al aplicables en el \u00e1mbito del control activo,ya sea \u00e9ste de ruido, de vibraci\u00f3n o ac\u00fastico estructural. El algoritmo fxlms es el m\u00e1s usado en control activo por su sencillez yrobustez. Sin embargo, su convergencia es a menudo demasiado lenta, adem\u00e1s de tener una gran dependencia de la se\u00f1al dereferencia. As\u00ed, la presente tesis se centra en la b\u00fasqueda de algoritmos altemativos para sistemas de control activo, con el objetivoprincipal de mejorar las caracter\u00edsticas de convergencia del algoritmo fxlms, y m\u00e1s espec\u00edficamente su velocidad. Adem\u00e1s delbeneficio evidente de una convergencia m\u00e1s r\u00e1pida, en entornos altamente no estacionarios esto se traduce tambi\u00e9n en una mayorcapacidad de seguimiento y, por tanto, de cancelaci\u00f3n. Para mantener el inevitable incremento del coste computacional dentro deunos limites aceptables, as\u00ed como evitar posibles problemas de estabilidad num\u00e9rica, s\u00f3lo se consideran algoritmos adaptativos degradiente estoc\u00e1stico.Los algoritmos desarrollados se agrupan en dos familias: los fxgal, que usan un predictor adaptativo en celos\u00eda para ortogonalizarel vector de datos de entrada, y los w+fxlms, o fxlms con preblanqueado, en los que un sistema blanqueador, transversal o encelos\u00eda, condiciona la se\u00f1al de referencia filtrada. Las prestaciones de estos algoritmos se eval\u00faan mediante pruebas exhaustivas enentomos simulados, as\u00ed como en una aplicaci\u00f3n real de control activo de ruido en un entorno de laboratorio.Adem\u00e1s del desarrollo y prueba de nuevos algoritmos para control activo, en la presente tesis se han llevado a cabo dos novedososestudios te\u00f3ricos acerca de la convergencia de algoritmos adaptativos. Estos an\u00e1lisis corresponden, por un lado, al paso deadaptaci\u00f3n m\u00e1ximo del fxlms con se\u00f1al de referencia determinista, y por otro, a la influencia que la se\u00f1al deseada tiene en laconvergencia de algoritmos de descenso de gradi<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Algoritmos de convergencia r\u00e1pida para control activo de ruido<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Algoritmos de convergencia r\u00e1pida para control activo de ruido <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Luis Vicente Borruel <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Zaragoza<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 26\/01\/2005<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Enrique Masgrau Gomez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Jos\u00e9 adri\u00e1n Rodr\u00edguez fonollosa <\/li>\n<li>Alberto Gonz\u00e1lez salvador (vocal)<\/li>\n<li>eduardo Lleida solano (vocal)<\/li>\n<li>Mar\u00eda Cueesta ruiz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Luis Vicente Borruel La presente tesis doctoral trata del estudio de algoritmos adaptativos de procesado de se\u00f1al [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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