{"id":31810,"date":"1997-01-01T00:00:00","date_gmt":"1997-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/conformador-de-haz-de-referencia-por-codigo-de-dos-etapas-aplicacion-a-la-recepcion-de-senales-con-modulacion-de-saltos-frecuenciales\/"},"modified":"1997-01-01T00:00:00","modified_gmt":"1997-01-01T00:00:00","slug":"conformador-de-haz-de-referencia-por-codigo-de-dos-etapas-aplicacion-a-la-recepcion-de-senales-con-modulacion-de-saltos-frecuenciales","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/conformador-de-haz-de-referencia-por-codigo-de-dos-etapas-aplicacion-a-la-recepcion-de-senales-con-modulacion-de-saltos-frecuenciales\/","title":{"rendered":"Conformador de haz de referencia por codigo de dos etapas: aplicacion a la recepcion de se\u00f1ales con modulacion de saltos frecuenciales."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Montserrat Najar Marton <\/strong><\/h2>\n<p>La tesis propone un nuevo conformador de haz para la recepcion de se\u00f1ales con modulacion de saltos frecuenciales \u00abfrequency hopping\u00bb (fh) basado en el conocimiento de la secuencia de frecuencias utilizada en la modulacion denominandose por ello conformador de haz de referencia por codigo \u00abcode reference beamformer\u00bb (crb). Este conformador se divide en dos etapas, cada una de ellas implementa uno de los factores del vector de enfoque optimo; es decir, la primera etapa es igual a la inversa de la matriz de covarianza de ruido mas interferencias y la segunda es igual al vector de direccion de la se\u00f1al deseada. La obtencion de estas etapas es posible gracias a la prediccion del escenario que se tendra durante el salto siguiente, la cual puede realizarse simultaneamente a la recepcion gracias al conocimiento de la secuencia frecuencial.  el sistema receptor se compone de dos procesadores: el procesador anticipado que se dedica a la estimacion de la matriz de covarianza de ruido mas interferencias presentes en la banda frecuencial del siguiente salto y el procesador directo que es el encargado de la conformacion de haz. Finalmente se propone la extension de crb a un conformador de haz autocalibrado de aplicacion general que no requiere referencia alguna, ni temporal ni espacial.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Conformador de haz de referencia por codigo de dos etapas: aplicacion a la recepcion de se\u00f1ales con modulacion de saltos frecuenciales.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Conformador de haz de referencia por codigo de dos etapas: aplicacion a la recepcion de se\u00f1ales con modulacion de saltos frecuenciales. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Montserrat Najar Marton <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de catalunya<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1997<\/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>Miguel Angel Lagunas Hern\u00e1ndez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Gregori Vazquez Grau <\/li>\n<li>Manuel Sierra Perez (vocal)<\/li>\n<li>Francis Castaine (vocal)<\/li>\n<li>Pedro Pinto Tardon (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Montserrat Najar Marton La tesis propone un nuevo conformador de haz para la recepcion de se\u00f1ales con [&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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