{"id":63328,"date":"2008-06-03T00:00:00","date_gmt":"2008-06-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/contribution-to-the-design-of-continuous-time-sigma-delta-modulators-based-on-time-delay-elements\/"},"modified":"2008-06-03T00:00:00","modified_gmt":"2008-06-03T00:00:00","slug":"contribution-to-the-design-of-continuous-time-sigma-delta-modulators-based-on-time-delay-elements","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/diseno-de-circuitos\/contribution-to-the-design-of-continuous-time-sigma-delta-modulators-based-on-time-delay-elements\/","title":{"rendered":"Contribution to the design of continuous-time sigma-delta modulators based on time delay elements"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Enrique Prefasi Sen <\/strong><\/h2>\n<p>Los moduladores sigma-delta constituyen una t\u00e9cnica de conversi\u00f3n de datos a\/d interesante para los actuales sistemas de comunicaci\u00f3n. Sin embargo, los moduladores sigma-delta empleados tradicionalmente en diversas aplicaciones est\u00e1n implementados con filtros en tiempo discreto, lo cual les imposibilita trabajar a elevadas frecuencias de muestreo. Sin embargo, si implementamos los filtros en tiempo continuo, obtenemos estructuras que permiten aumentar la velocidad de muestreo al menos un orden de magnitud sin perder resoluci\u00f3n. comparado con otras alternativas, los moduladores sigma-delta en tiempo continuo son especialmente insensibles a las imperfecciones del circuito y a las tolerancias de los componentes. Estos moduladores sigma-delta en tiempo continuo son fuente de numerosas investigaciones en la actualidad, ya que constituyen una alternativa aun no resuelta en su totalidad para implementar conversores de datos a\/d para su posible integraci\u00f3n en los actuales receptores de radio digitales para se\u00f1ales de radiofrecuencia. la tesis que se propone en el presente documento pretende estudiar y analizar varias estructuras de moduladores sigma-delta en tiempo continuo basados en elementos de retardo. Como aplicaci\u00f3n pr\u00e1ctica se dise\u00f1ar\u00e1n y medir\u00e1n varios circuitos integrados que demuestren las propiedades de estos sistemas para su posible aplicaci\u00f3n como convertidores a\/d en los actuales sistemas de comunicaciones inal\u00e1mbricos.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Contribution to the design of continuous-time sigma-delta modulators based on time delay elements<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Contribution to the design of continuous-time sigma-delta modulators based on time delay elements <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Enrique Prefasi Sen <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Carlos III de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 06\/03\/2008<\/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>Luis Hernandez Corporales<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: alfonso Carlosena Garc\u00eda <\/li>\n<li>pierre Rombouts (vocal)<\/li>\n<li>ramon Gonzalez carvajal (vocal)<\/li>\n<li>Jos\u00e9 Manuel De la rosa utrera (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Enrique Prefasi Sen Los moduladores sigma-delta constituyen una t\u00e9cnica de conversi\u00f3n de datos a\/d interesante para los [&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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