{"id":1233,"date":"2019-12-03T16:34:19","date_gmt":"2019-12-03T15:34:19","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2019\/12\/03\/interface-radio-sdr-pour-recepteur-gnss-multi-constellations-pour-la-continuite-de-positionnement-entre-linterieur-et-lexterieur\/"},"modified":"2020-09-04T18:45:18","modified_gmt":"2020-09-04T16:45:18","slug":"interface-radio-sdr-pour-recepteur-gnss-multi-constellations-pour-la-continuite-de-positionnement-entre-linterieur-et-lexterieur","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2019\/12\/03\/interface-radio-sdr-pour-recepteur-gnss-multi-constellations-pour-la-continuite-de-positionnement-entre-linterieur-et-lexterieur\/","title":{"rendered":"Interface Radio SDR pour r\u00e9cepteur GNSS multi-constellations pour la continuit\u00e9 de positionnement entre l\u2019int\u00e9rieur et l\u2019ext\u00e9rieur"},"content":{"rendered":"

AVIS DE SOUTENANCE de Madame Hanen MEHREZ<\/strong>
\nAutoris\u00e9e \u00e0 pr\u00e9senter ses travaux en vue de l\u2019obtention du Doctorat de l’Universit\u00e9 Paris-Saclay, pr\u00e9par\u00e9 \u00e0 T\u00e9l\u00e9com SudParis en :
\nR\u00e9seaux, information et communications
\n\u00ab Interface Radio SDR pour r\u00e9cepteur GNSS multi-constellations pour la continuit\u00e9 de positionnement entre l\u2019int\u00e9rieur et l\u2019ext\u00e9rieur \u00bb<\/p>\n

– le LUNDI 8 JUILLET 2019 \u00e0 14h00<\/strong>
\n\u00e0 l’Amphi Ibn khaldoun
\nSup’Com Tunis – Cit\u00e9 Technologique des Communications Route de Raoued Km 3,5 2083 El Ghazala Ariana Tunisie<\/p>\n

Membres du jury :<\/strong><\/p>\n

M. Nel SAMAMA, Professeur, T\u00e9l\u00e9com SudParis, FRANCE – Directeur de th\u00e8se
\nM. Aziz BENLARBI-DELAI, Professeur, UPMC Paris-Sorbonne, FRANCE – Rapporteur
\nM. Noureddine BOULEJFENE, Professeur, Centre de Recherche en Micro\u00e9lectronique et Nanotechnologie, Sousse, TUNISIE – Rapporteur
\nMme Maryline LAURENT , Professeure, T\u00e9l\u00e9com SudParis, FRANCE – Examinatrice
\nM. Adel GHAZEL, Professeur, Sup’com, TUNISIE – Directeur de th\u00e8se
\nM. Ali GHARSALLAH, Professeur, Facult\u00e9 des Sciences de Tunis, – Examinateur<\/p>\n

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

Dans le but d\u2019am\u00e9liorer la disponibilit\u00e9 des services fournis par un r\u00e9cepteur, la conception d\u2019un r\u00e9cepteur GNSS permettant de recevoir plusieurs signaux de toutes les bandes simultan\u00e9ment semble \u00eatre la solution. Une architecture \u00e0 sous \u00e9chantillonnage RF optimis\u00e9e de type SDR (Software Defined Radio) comportant un \u00e9tage RF int\u00e9grable et reconfigurable et un \u00e9tage de traitement num\u00e9rique avec une impl\u00e9mentation logicielle du traitement en bande de base est d\u00e9fini pour ce r\u00e9cepteur GNSS, tout en r\u00e9pondant aux exigences des sp\u00e9cifications des standards GNSS : des r\u00e9seaux radio cellulaires : GPS, Glonass, Galileo, Beidou. Un choix des composants discrets suite au dimensionnement system est effectu\u00e9 et ceci pour installer un prototype de validation exp\u00e9rimental. Ensuite nous nous s\u2019int\u00e9ressons \u00e0 la caract\u00e9risation de la chaine RF afin d\u2019\u00e9tudier les limitations caus\u00e9s par la non lin\u00e9arit\u00e9 et d\u2019\u00e9tudier la stabilit\u00e9 du prototype propos\u00e9. Un \u00e9tage de traitement num\u00e9rique des signaux IF, captur\u00e9s \u00e0 la sortie de l\u2019ADC, est impl\u00e9ment\u00e9 sous Matlab. L\u2019acquisition de ces donn\u00e9es permet la d\u00e9termination des satellites visible \u00e0 un instant donn\u00e9 qui nous permet \u00e9ventuellement la d\u00e9termination d\u2019une position.<\/p>\n

Abstract :<\/strong><\/p>\n

In order to improve the availability of services provided by a receiver, designing a GNSS receiver to collect multiple signals from all bands simultaneously seems to be the solution. An optimized software-defined RF (SDR) sub-sampling architecture with an integral and reconfigurable RF stage and a digital processing stage with a software implementation of the baseband processing is defined for this GNSS receiver, while meeting the requirements GNSS standards specifications: cellular radio networks: GPS, Glonass, Galileo, Beidou. Many discrete components are selected after system dimensioning. Thus, experimental validation prototype is installed. Then we are interested in the characterization of the RF front-end in order to determine the limitations caused by the nonlinearity and to study the stability of the proposed prototype. A stage of digital processing of the IF signals, captured at the ADC output, is implemented under Matlab software. The acquisition of these data allows the determination of satellites visible at a given instant that allows us to determine a position.<\/p>\n","protected":false},"excerpt":{"rendered":"

AVIS DE SOUTENANCE de Madame Hanen MEHREZ Autoris\u00e9e \u00e0 pr\u00e9senter ses travaux en vue de l\u2019obtention du Doctorat de l’Universit\u00e9 Paris-Saclay, pr\u00e9par\u00e9 \u00e0 T\u00e9l\u00e9com SudParis en : R\u00e9seaux, information et communications \u00ab Interface Radio SDR pour r\u00e9cepteur GNSS multi-constellations pour la continuit\u00e9 de positionnement entre l\u2019int\u00e9rieur et l\u2019ext\u00e9rieur \u00bb – le LUNDI 8 JUILLET 2019 […]<\/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":[296],"tags":[],"class_list":["post-1233","post","type-post","status-publish","format-standard","hentry","category-theses-2019-fr","entry"],"_links":{"self":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1233","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=1233"}],"version-history":[{"count":1,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1233\/revisions"}],"predecessor-version":[{"id":1433,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1233\/revisions\/1433"}],"wp:attachment":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media?parent=1233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/categories?post=1233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/tags?post=1233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}