{"id":193,"date":"2011-04-01T12:24:49","date_gmt":"2011-04-01T10:24:49","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2011\/04\/01\/soutenance-these-de-khalil-jishy\/"},"modified":"2020-09-04T18:47:16","modified_gmt":"2020-09-04T16:47:16","slug":"soutenance-these-de-khalil-jishy","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2011\/04\/01\/soutenance-these-de-khalil-jishy\/","title":{"rendered":"SOUTENANCE : Th\u00e8se de Khalil Jishy"},"content":{"rendered":"

Mardi 22 Mars<\/strong> 2011<\/p>\n

\u00ab\u00a0Pistage de cibles manoeuvrantes en radar passif par filtrage \u00e0 particules gaussiennes<\/strong>\u00a0\u00bb<\/p>\n

La th\u00e8se a \u00e9t\u00e9 soutenue par Khalil Jishy<\/strong>, doctorant du d\u00e9partement CITI<\/p>\n

Mardi 22 Mars 2011 \u00e0 14h00<\/p>\n

T\u00e9l\u00e9com ParisTech, 46, rue Barrault, Paris 13\u00e8me, Amphi SAPHIR.
\nJury<\/p>\n

– Mr Jean-Luc Zarader, Professeur \u00e0 l’ISIR\/UPMC, Examinateur
\n– Mme Sylvie Marcos, Directeur de Recherche au LSS\/SUPELEC, Rapporteur
\n– Mr Jean-Charles Noyer, Professeur au LISIC\/ULCO, Rapporteur
\n– Mr Fran\u00e7ois Gosselin, Expert radar \u00e0 THALES Air Systems, Examinateur
\n– Mr G\u00e9rard Salut, Directeur de Recherche au LAAS\/CNRS, Directeur de th\u00e8se
\n– Mr Fr\u00e9d\u00e9ric Lehmann, Ma\u00eetre de conf\u00e9rences \u00e0 T\u00e9l\u00e9com SudParis, Encadrant<\/p>\n

Invit\u00e9s<\/p>\n

* Mr Jacques Blanc-Talon, Charg\u00e9 de mission S\u00e9curit\u00e9 et Interop\u00e9rabilit\u00e9 des SIC \u00e0 la DGA<\/p>\n

* Mr Anis Ziadi, Ing\u00e9nieur de recherche \u00e0 DSi <\/p>\n

R\u00e9sum\u00e9<\/strong><\/p>\n

\u00a0\u00bb Cette th\u00e8se porte sur l’application des techniques de filtrage statistiques au radar passif. L’objectif de cette th\u00e8se est d’adapter les m\u00e9thodes \u00e0 somme de gaussiennes et les m\u00e9thodes particulaires pour la d\u00e9tection et\/ou la poursuite dans un contexte multi-cible. Nous nous int\u00e9ressons aux probl\u00e9matiques li\u00e9es \u00e0 des cibles fortement manoeuvrantes \u00e0 rapport signal sur bruit pouvant \u00eatre tr\u00e8s faible. En guise d’application, la radio FM et la t\u00e9l\u00e9vision num\u00e9rique DVB-T seront exploit\u00e9es comme sources d’opportunit\u00e9 par le syst\u00e8me de localisation passive.<\/p>\n

Dans un premier temps, cette th\u00e8se r\u00e9capitule l’\u00e9tat de l’art dans le domaine du radar passif, du filtrage statistique et des approches conventionnelles de pistage radar \u00e0 base de donn\u00e9es seuill\u00e9es.<\/p>\n

Dans un deuxi\u00e8me temps, cette th\u00e8se explore l’apport du filtrage particulaire en radar passif. Avec une mod\u00e9lisation convenable du probl\u00e8me de poursuite d’une cible sous la forme d’un syst\u00e8me dynamique non-lin\u00e9aire, nous montrons comment le filtrage particulaire, appliqu\u00e9 sur les sorties bruit\u00e9es (non-seuill\u00e9es) du corr\u00e9lateur, am\u00e9liore les performances en terme de poursuite par rapport aux approches conventionnelles. Une extension au cas multi-cible est \u00e9galement trait\u00e9e. L’ingr\u00e9dient essentiel de l’algorithme propos\u00e9 est l’int\u00e9gration d’un syst\u00e8me de synchronisation de l’instant d’\u00e9chantillonnage du corr\u00e9lateur (et le cas \u00e9ch\u00e9ant de la fr\u00e9quence de corr\u00e9lation) qui permet \u00e0 l’algorithme particulaire de compenser automatiquement la dynamique des cibles.<\/p>\n

Dans un troisi\u00e8me temps, nous exposons un nouveau syst\u00e8me de d\u00e9tection\/poursuite multi-cible bas\u00e9 sur le filtrage bay\u00e9sien avec la m\u00e9thodologie \u00ab\u00a0track-before-detect\u00a0\u00bb. Ce syst\u00e8me est impl\u00e9ment\u00e9 par une approximation \u00e0 base de somme de gaussiennes ou une approximation \u00e0 base de filtrage particulaire. Nous proposons \u00e9galement une technique d’annulation successive d’interf\u00e9rence qui permet de g\u00e9rer la pr\u00e9sence de lobes secondaires importants. Des simulations utilisant un signal radio FM, ont permis de confirmer le potentiel du syst\u00e8me de d\u00e9tection\/poursuite propos\u00e9.\u00a0\u00bb<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Mardi 22 Mars 2011 \u00ab\u00a0Pistage de cibles manoeuvrantes en radar passif par filtrage \u00e0 particules gaussiennes\u00a0\u00bb La th\u00e8se a \u00e9t\u00e9 soutenue par Khalil Jishy, doctorant du d\u00e9partement CITI Mardi 22 Mars 2011 \u00e0 14h00 T\u00e9l\u00e9com ParisTech, 46, rue Barrault, Paris 13\u00e8me, Amphi SAPHIR. Jury – Mr Jean-Luc Zarader, Professeur \u00e0 l’ISIR\/UPMC, Examinateur – Mme Sylvie […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[7],"tags":[],"class_list":["post-193","post","type-post","status-publish","format-standard","hentry","category-uncategorized-fr","entry"],"_links":{"self":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/comments?post=193"}],"version-history":[{"count":1,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/193\/revisions"}],"predecessor-version":[{"id":2027,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/193\/revisions\/2027"}],"wp:attachment":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media?parent=193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/categories?post=193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/tags?post=193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}