{"id":78971,"date":"2006-07-03T00:00:00","date_gmt":"2006-07-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/new-observational-techniques-and-analysis-tools-for-wide-field-ccd-surveys-and-high-resolution-astrometry\/"},"modified":"2006-07-03T00:00:00","modified_gmt":"2006-07-03T00:00:00","slug":"new-observational-techniques-and-analysis-tools-for-wide-field-ccd-surveys-and-high-resolution-astrometry","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/barcelona\/new-observational-techniques-and-analysis-tools-for-wide-field-ccd-surveys-and-high-resolution-astrometry\/","title":{"rendered":"New observational techniques and analysis tools for wide field ccd surveys and high resolution astrometry"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Octavi Fors Aldrich <\/strong><\/h2>\n<p>En este trabajo se han dise\u00f1ado y desarrollado una serie de nuevas t\u00e9cnicas observacionales y herramientas de an\u00e1lisis de datos en dos \u00e1reas diferenciadas. Por un lado, la deconvoluci\u00f3n de im\u00e1genes ccd de gran campo (tipo survey). Por otro lado, la astrometr\u00eda de alta resoluci\u00f3n, y en particular las t\u00e9cnicas observacionales de ocultaciones lunares y interferometr\u00edas speckle.     en cuanto a la primera, se han aplicado dos algoritmos de deconvoluci\u00f3n (m\u00e1xima verosimilitud richardson-lucy (mle) y su variante adaptativa basada en wavelets (awmle)) a datos de tres proyectos survey: el flagstaff transit telescope (fastt), el quasar equatorial survey team (quest) y el near-earth space surveillance terrestrial (ness-t). Los tres tienen han visto restrindia su magnitud y resoluci\u00f3n l\u00edmites debido al modo de adquisici\u00f3n drifft scanning (para fastt y quest) o la muy corta relaci\u00f3n focal del instrumento ness-t. se ha propuesto e implementado una nueva metodolog\u00eda para la aplicaci\u00f3n de awmle y mle paralas anteriores im\u00e1genes. \u00e9sta permite evaluar la mejora aportada por la deconvoluci\u00f3n en t\u00e9rminos de incremento de magnitud y resoluci\u00f3n l\u00edmites. Adem\u00e1s, resulta del todo general y es exportable a otros datos survey. los resultados obtenidos muestran que awmle permite conseguir un incremento en la magnitud l\u00edmite de am-0,6mag y una mejora en la resoluci\u00f3n l\u00edmite de 1.0 pixel. Adem\u00e1s, se ha comprobado que tales tendencias son asint\u00f3ticamente independientes a partir de un n\u00famero de iteraciones suficientemente grande. Paralelamente, se ha comprobado que la deconvoluci\u00f3n mle sobre datos fastt no afectan significativamente a la precisi\u00f3n astrom\u00e9trica ni introducen ning\u00fan sesgo hacia el centro de pixel.     en cuanto a las ocultaciones lunares, se ha ideado, desarrollado, implementado y evaluado una nueva t\u00e9cnica de observaci\u00f3n ccd para ocultaciones lunares. \u00e9sta basada en el esquema drifft scanning y permite muestran la intensidad del objeto<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>New observational techniques and analysis tools for wide field ccd surveys and high resolution astrometry<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 New observational techniques and analysis tools for wide field ccd surveys and high resolution astrometry <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Octavi Fors Aldrich <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 07\/03\/2006<\/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>Jorge Nu\u00f1ez De Murga<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal:  Van altena william f. <\/li>\n<li>Andrea Richichi (vocal)<\/li>\n<li>blas Sanahuja parera (vocal)<\/li>\n<li>p. Horch elliott (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Octavi Fors Aldrich En este trabajo se han dise\u00f1ado y desarrollado una serie de nuevas t\u00e9cnicas observacionales [&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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[2207,32701,951,1462],"tags":[169621,1054,42600,169619,169622,169620],"class_list":["post-78971","post","type-post","status-publish","format-standard","hentry","category-analisis-de-datos","category-astronomia-de-posicion","category-barcelona","category-estrellas-dobles","tag-andrea-richichi","tag-blas-sanahuja-parera","tag-jorge-nunez-de-murga","tag-octavi-fors-aldrich","tag-p-horch-elliott","tag-van-altena-william-f"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/78971","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=78971"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/78971\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=78971"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=78971"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=78971"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}