{"id":106780,"date":"2011-11-02T00:00:00","date_gmt":"2011-11-02T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/planning-factors-for-digital-local-broadcasting-in-the-26-mhz-band\/"},"modified":"2011-11-02T00:00:00","modified_gmt":"2011-11-02T00:00:00","slug":"planning-factors-for-digital-local-broadcasting-in-the-26-mhz-band","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/radiocomunicaciones\/planning-factors-for-digital-local-broadcasting-in-the-26-mhz-band\/","title":{"rendered":"Planning factors for digital local broadcasting in the 26 mhz band"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Ivan Pe\u00f1a Valverde <\/strong><\/h2>\n<p>Vivimos un proceso de digitalizaci\u00f3n que afecta a todo tipo de \u00e1reas t\u00e9cnicas en general y a la radiodifusi\u00f3n sonora en particular. Las tecnolog\u00edas de radio digital emergentes proporcionan mayor calidad de audio optimizando el uso que se hace de las frecuencias. Tal optimizaci\u00f3n es especialmente significativa en el caso de la banda de 26 mhz, una parte del espectro asignada a la transmisi\u00f3n de servicios de audio a larga distancia por medio de la propagaci\u00f3n ionosf\u00e9rica. Sin embargo, una recepci\u00f3n m\u00ednimamente fiable de este tipo de se\u00f1ales requiere altos niveles de ionizaci\u00f3n en la ionosfera, un fen\u00f3meno que no es muy com\u00fan a lo largo de un ciclo solar y que por tanto, ha dado lugar a que dichas frecuencias hayan sido escasamente consideradas hasta el momento.        a fin de explotar la banda de 26 mhz m\u00e1s eficientemente, varios radiodifusores han promovido en los \u00faltimos a\u00f1os su uso para la transmisi\u00f3n de servicios terrestres con cobertura local. Esta soluci\u00f3n se basa en la tecnolog\u00eda drm (digital radio mondiale), tal que se han realizado varias pruebas y estudios con objeto de demostrar su viabilidad. No obstante, todav\u00eda es necesario definir ciertos par\u00e1metros y herramientas de planificaci\u00f3n.        esta tesis pretende cubrir tales deficiencias mediante el estudio de los mecanismos de propagaci\u00f3n de onda terrestre existentes en esta banda y de las posibles interferencias ionosf\u00e9ricas, ruido y otro tipo de perturbaciones que pueden influir en la fiabilidad de los correspondientes servicios digitales. El an\u00e1lisis se basa en bases de datos emp\u00edricas derivadas de un conjunto de pruebas dise\u00f1adas para obtener muestras de estos fen\u00f3menos electromagn\u00e9ticos bajo condiciones de transmisi\u00f3n-recepci\u00f3n muy diferentes.        de este modo, se ha definido un m\u00e9todo de predicci\u00f3n de cobertura local, as\u00ed como los niveles y periodos de interferencia ionosf\u00e9rica. Adem\u00e1s, se han caracterizado otro tipo de se\u00f1ales interferentes y el ruido externo. Los resultados de este trabajo contribuyen por tanto al desarrollo y consolidaci\u00f3n de los servicios drm en la banda de 26 mhz.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Planning factors for digital local broadcasting in the 26 mhz band<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Planning factors for digital local broadcasting in the 26 mhz band <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Ivan Pe\u00f1a Valverde <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Pa\u00eds vasco\/euskal herriko unibertsitatea<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 11\/02\/2011<\/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>Pablo Angueira Buceta<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Juan  Luis Ordiales basterrechea <\/li>\n<li>thomas Lauterbach (vocal)<\/li>\n<li>joseph Wout (vocal)<\/li>\n<li>Jos\u00e9 Mar\u00eda Matias maruri (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Ivan Pe\u00f1a Valverde Vivimos un proceso de digitalizaci\u00f3n que afecta a todo tipo de \u00e1reas t\u00e9cnicas en [&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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