{"id":21553,"date":"2024-04-27T08:03:12","date_gmt":"2024-04-27T08:03:12","guid":{"rendered":"https:\/\/heylocate.mobi\/fr\/?post_type=termin&#038;p=21553"},"modified":"2024-07-29T11:54:27","modified_gmt":"2024-07-29T11:54:27","slug":"gnss","status":"publish","type":"termin","link":"https:\/\/heylocate.mobi\/fr\/termin\/gnss\/","title":{"rendered":"Syst\u00e8mes Mondiaux de Navigation par Satellite (GNSS)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"Qu-est-ce-que-les-Syst\u00e8mes-Mondiaux-de-Navigation-par-Satellite\">Qu&rsquo;est-ce que GNSS ?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les Syst\u00e8mes Mondiaux de Navigation par Satellite \/ Syst\u00e8me de positionnement par satellites<\/strong> <em>(en anglais Global Navigation Satellite Systems <strong>GNSS<\/strong>)<\/em> repr\u00e9sentent une constellation de satellites fournissant \u00e0 l&rsquo;\u00e9chelle mondiale des donn\u00e9es de positionnement, de navigation et de chronom\u00e9trage (PNT). Ces syst\u00e8mes utilisent un r\u00e9seau de satellites qui entourent la Terre, \u00e9mettant des signaux re\u00e7us par les r\u00e9cepteurs GNSS au sol. Le r\u00e9cepteur peut d\u00e9terminer sa position exacte en calculant le temps de parcours du signal jusqu&rsquo;au r\u00e9cepteur et les positions connues des satellites.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Distinction-entre-Syst\u00e8mes-de-Navigation-par-Satellite-et-GNSS\">Distinction entre Syst\u00e8mes de Navigation par Satellite et GNSS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La distinction entre les Syst\u00e8mes de Navigation par Satellite et les GNSS est que les premiers d\u00e9signent des syst\u00e8mes individuels comme le <a href=\"https:\/\/heylocate.mobi\/fr\/termin\/gps\/\" target=\"_blank\" rel=\"noreferrer noopener\">GPS<\/a>, tandis que les derniers englobent plusieurs syst\u00e8mes globaux et r\u00e9gionaux. Les GNSS comprennent le GPS (USA), GLONASS (Russie), BeiDou (Chine) et Galileo (Europe), assurant une couverture mondiale et une redondance pour l&rsquo;acc\u00e8s \u00e0 des informations PNT pr\u00e9cises.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1642\" src=\"https:\/\/heylocate.mobi\/fr\/wp-content\/uploads\/sites\/4\/2024\/04\/explication-de-ce-quest-le-gnss-et-de-ses-types.jpg\" alt=\"D\u00e9finition des syst\u00e8mes mondiaux de navigation par satellite (GNSS) et de leurs types, avec les pays et de br\u00e8ves descriptions de ces syst\u00e8mes.\" class=\"wp-image-21554\" srcset=\"https:\/\/heylocate.mobi\/fr\/wp-content\/uploads\/sites\/4\/2024\/04\/explication-de-ce-quest-le-gnss-et-de-ses-types.jpg 1920w, https:\/\/heylocate.mobi\/fr\/wp-content\/uploads\/sites\/4\/2024\/04\/explication-de-ce-quest-le-gnss-et-de-ses-types-300x257.jpg 300w, https:\/\/heylocate.mobi\/fr\/wp-content\/uploads\/sites\/4\/2024\/04\/explication-de-ce-quest-le-gnss-et-de-ses-types-1169x1000.jpg 1169w, https:\/\/heylocate.mobi\/fr\/wp-content\/uploads\/sites\/4\/2024\/04\/explication-de-ce-quest-le-gnss-et-de-ses-types-768x657.jpg 768w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><figcaption class=\"wp-element-caption\">Infographie : D\u00e9finition des GNSS et de ce qu&rsquo;ils comprennent, avec une br\u00e8ve description de chaque syst\u00e8me<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Vue-d-ensemble-des-Syst\u00e8mes-Globaux-Op\u00e9rationnels\">Vue d&rsquo;ensemble des Syst\u00e8mes Globaux Op\u00e9rationnels<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les principaux syst\u00e8mes globaux op\u00e9rationnels au sein du cadre des GNSS sont GPS, GLONASS, BeiDou et Galileo :<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Syst\u00e8me<\/th><th class=\"has-text-align-left\" data-align=\"left\">Origine<\/th><th class=\"has-text-align-left\" data-align=\"left\">Description<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>GPS (Syst\u00e8me de Positionnement Global)<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u00c9tats-Unis<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le syst\u00e8me GNSS le plus connu et le plus utilis\u00e9, d\u00e9velopp\u00e9 et op\u00e9r\u00e9 par le D\u00e9partement de la D\u00e9fense des \u00c9tats-Unis. Fournit des donn\u00e9es pr\u00e9cises de positionnement et de navigation via un r\u00e9seau de satellites qui orbitent autour de la Terre et transmettent des signaux en continu<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>GLONASS (Syst\u00e8me Global de Navigation par Satellite)<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Russie<\/td><td class=\"has-text-align-left\" data-align=\"left\">L&rsquo;\u00e9quivalent russe du GPS fonctionne de mani\u00e8re similaire avec une constellation de satellites qui transmettent des signaux aux r\u00e9cepteurs sur Terre. Offre une couverture mondiale avec un accent sur les r\u00e9gions nordiques<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>BeiDou<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Chine<\/td><td class=\"has-text-align-left\" data-align=\"left\">Syst\u00e8me de navigation par satellite de la Chine, initialement lanc\u00e9 comme un syst\u00e8me r\u00e9gional mais \u00e9volu\u00e9 en un syst\u00e8me global connu sous le nom de BeiDou-3. Offre principalement une couverture en Asie mais s&rsquo;est \u00e9tendu pour inclure une couverture mondiale, offrant des capacit\u00e9s similaires \u00e0 celles du GPS et de GLONASS<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Galileo<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Union Europ\u00e9enne<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le syst\u00e8me de navigation global de l&rsquo;Union Europ\u00e9enne vise \u00e0 fournir un syst\u00e8me de navigation par satellite ind\u00e9pendant et fiable pour un usage civil. Il est encore en cours de d\u00e9ploiement complet mais offre d\u00e9j\u00e0 des services de positionnement et de chronom\u00e9trage aux utilisateurs du monde entier<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Syst\u00e8mes-de-Navigation-R\u00e9gionaux\">Syst\u00e8mes de Navigation R\u00e9gionaux<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les Syst\u00e8mes de Navigation R\u00e9gionaux augmentent l&rsquo;efficacit\u00e9 des GNSS dans des zones sp\u00e9cifiques :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>NavIC (Navigation avec la Constellation Indienne) :<\/strong> Le syst\u00e8me de l&rsquo;Inde couvre l&rsquo;oc\u00e9an Indien et les r\u00e9gions voisines, am\u00e9liorant la pr\u00e9cision et la disponibilit\u00e9 de la navigation.<\/li>\n\n\n\n<li><strong>QZSS (Syst\u00e8me Satellite Quasi-Z\u00e9nith) :<\/strong> Le syst\u00e8me du Japon am\u00e9liore la couverture GPS en Asie-Oc\u00e9anie, particuli\u00e8rement dans les zones urbaines et les zones de visibilit\u00e9 difficile.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces syst\u00e8mes r\u00e9gionaux renforcent l&rsquo;efficacit\u00e9 des GNSS en am\u00e9liorant la pr\u00e9cision et la disponibilit\u00e9 dans leurs zones respectives.<\/p>\n\n\n<section id=\"section-generated-banner-block_1782cb3a12097557899c105edf528e88\" class=\"section block-section-generated-banner\">\n\t\r\n<!-- Responsive Display Ad TPN -->\r\n<ins class=\"adsbygoogle\" data-hl2-lazy=\"1\"\r\n     style=\"display:flex;justify-content: center;\"\r\n     data-ad-client=\"ca-pub-3100229280663156\"\r\n     data-ad-slot=\"3891667990\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>document.addEventListener(\"DOMContentLoaded\",function(){var c=\"ca-pub-3100229280663156\",L=0,io=new IntersectionObserver(function(es){es.forEach(function(e){if(!e.isIntersecting)return;io.unobserve(e.target);if(!L){L=1;var s=document.createElement(\"script\");s.async=true;s.crossOrigin=\"anonymous\";s.src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=\"+c;document.head.appendChild(s);}(window.adsbygoogle=window.adsbygoogle||[]).push({});});},{rootMargin:\"600px 0px\"});document.querySelectorAll(\"ins.adsbygoogle[data-hl2-lazy]\").forEach(function(i){io.observe(i);});});<\/script><\/section>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Classification-des-GNSS\">Classification des GNSS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les GNSS peuvent \u00eatre classifi\u00e9s en g\u00e9n\u00e9rations bas\u00e9es sur leurs capacit\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>GNSS-1 (Premi\u00e8re G\u00e9n\u00e9ration) :<\/strong> Comprend le GPS et GLONASS, initialement d\u00e9velopp\u00e9s \u00e0 des fins militaires mais maintenant utilis\u00e9s pour des applications civiles \u00e0 l&rsquo;\u00e9chelle mondiale, augment\u00e9s par des syst\u00e8mes comme le SBAS et le GBAS pour une pr\u00e9cision et une fiabilit\u00e9 accrues.<\/li>\n\n\n\n<li><strong>GNSS-2 (Deuxi\u00e8me G\u00e9n\u00e9ration) :<\/strong> Caract\u00e9ris\u00e9e par des syst\u00e8mes de navigation par satellite civils enti\u00e8rement ind\u00e9pendants exemplifi\u00e9s par Galileo, offrant une pr\u00e9cision et une disponibilit\u00e9 accrues, incorporant des syst\u00e8mes d&rsquo;augmentation bas\u00e9s au sol pour une meilleure pr\u00e9cision des donn\u00e9es.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Applications-des-GNSS\">Applications des GNSS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les applications des GNSS couvrent divers secteurs, y compris militaire, civil et de nouveaux domaines \u00e9mergents :<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">Secteur<\/th><th class=\"has-text-align-left\" data-align=\"left\">Application<\/th><th class=\"has-text-align-left\" data-align=\"left\">Description<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><span style=\"text-decoration: underline\">Militaire<\/span><\/td><td class=\"has-text-align-left\" data-align=\"left\">Navigation<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS fournit un positionnement et une navigation pr\u00e9cis pour permettre aux forces militaires de fonctionner efficacement dans divers environnements<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Ciblage<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS aide \u00e0 guider les missiles et les armes avec une grande pr\u00e9cision<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Reconnaissance<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS soutient la collecte de renseignements en permettant un suivi pr\u00e9cis des emplacements<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><span style=\"text-decoration: underline\">Civil<\/span><\/td><td class=\"has-text-align-left\" data-align=\"left\">Syst\u00e8mes de navigation<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS est utilis\u00e9 dans les syst\u00e8mes de navigation des voitures, avions et navires pour la planification d&rsquo;itin\u00e9raires et la guidance<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Arpentage et cartographie<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS aide \u00e0 cr\u00e9er des cartes pr\u00e9cises et \u00e0 mesurer les caract\u00e9ristiques du terrain<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">G\u00e9od\u00e9sie<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS contribue \u00e0 l&rsquo;\u00e9tude de la forme et de la taille de la Terre<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Agriculture de pr\u00e9cision<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS permet aux agriculteurs d&rsquo;optimiser l&rsquo;utilisation des ressources (engrais, pesticides) en fournissant un positionnement pr\u00e9cis pour les tracteurs et les \u00e9quipements<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Transport<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS est utilis\u00e9 pour le suivi des v\u00e9hicules, la gestion de flotte et l&rsquo;optimisation logistique<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">\u00c9lectronique grand public<\/td><td class=\"has-text-align-left\" data-align=\"left\">Les smartphones et les dispositifs portables int\u00e8grent souvent le GNSS pour les services bas\u00e9s sur la localisation<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><span style=\"text-decoration: underline\">\u00c9mergent<\/span><\/td><td class=\"has-text-align-left\" data-align=\"left\">V\u00e9hicules autonomes<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS fournit un positionnement et une navigation pr\u00e9cis cruciaux pour les voitures autonomes<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Recherche et sauvetage<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS aide \u00e0 localiser les personnes perdues ou isol\u00e9es<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Gestion des catastrophes<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS aide \u00e0 suivre les catastrophes et \u00e0 coordonner les efforts de secours<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Suivi des actifs<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS permet le suivi en temps r\u00e9el des actifs pr\u00e9cieux tels que les cargaisons ou les \u00e9quipements<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><\/td><td class=\"has-text-align-left\" data-align=\"left\">Villes intelligentes<\/td><td class=\"has-text-align-left\" data-align=\"left\">Le GNSS contribue au d\u00e9veloppement de syst\u00e8mes de transport intelligents, \u00e0 l&rsquo;optimisation de la circulation et \u00e0 la gestion des ressources<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"R\u00e9f\u00e9rences\">R\u00e9f\u00e9rences<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u201c<a href=\"https:\/\/web.archive.org\/web\/20170627221451\/http:\/\/www.ifatca.org\/system\/files\/public_docs\/gnss.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">A Beginner&rsquo;s Guide to GNSS in Europe<\/a>\u201d (PDF). IFATCA.<\/li>\n\n\n\n<li>\u201c<a href=\"https:\/\/gssc.esa.int\/navipedia\/index.php\/Galileo_General_Introduction\" target=\"_blank\" rel=\"noreferrer noopener\">Galileo General Introduction &#8211; Navipedia<\/a>\u201d. gssc.esa.int.<\/li>\n\n\n\n<li>\u201c<a href=\"https:\/\/gssc.esa.int\/navipedia\/index.php\/GNSS_signal\" target=\"_blank\" rel=\"noreferrer noopener\">GNSS signal &#8211; Navipedia<\/a>\u201d. gssc.esa.int.<\/li>\n\n\n\n<li>\u201c<a href=\"https:\/\/web.archive.org\/web\/20220302041206\/https:\/\/www.isro.gov.in\/irnss-programme\" target=\"_blank\" rel=\"noreferrer noopener\">IRNSS Programme &#8211; ISRO<\/a>\u201d. <a href=\"http:\/\/www.isro.gov.in\" target=\"_blank\" rel=\"noreferrer noopener\">www.isro.gov.in<\/a>.<\/li>\n\n\n\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Satellite_navigation\" target=\"_blank\" rel=\"noreferrer noopener\">Satellite navigation<\/a> &#8211; Wikipedia<\/li>\n\n\n\n<li><a href=\"https:\/\/novatel.com\/tech-talk\/an-introduction-to-gnss\/what-are-global-navigation-satellite-systems-gnss\" target=\"_blank\" rel=\"noreferrer noopener\">What are Global Navigation Satellite Systems<\/a>? | NovAtel<\/li>\n\n\n\n<li><a href=\"https:\/\/windward.ai\/glossary\/gnss-global-navigation-satellite-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\">GNSS &#8211; Global Navigation Satellite System<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.advancednavigation.com\/tech-articles\/global-navigation-satellite-system-gnss-and-satellite-navigation-explained\/\" target=\"_blank\" rel=\"noreferrer noopener\">Global Navigation Satellite System (GNSS) and satellite navigation explained<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Qu&rsquo;est-ce que GNSS ? Les Syst\u00e8mes Mondiaux de Navigation par Satellite \/ Syst\u00e8me de positionnement par satellites (en anglais Global Navigation Satellite Systems GNSS) repr\u00e9sentent une constellation de satellites fournissant \u00e0 l&rsquo;\u00e9chelle mondiale des donn\u00e9es de positionnement, de navigation et&#8230;<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","class_list":["post-21553","termin","type-termin","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Qu&#039;est-ce que GNSS ?<\/title>\n<meta name=\"description\" content=\"D\u00e9finition, signification et explication du GNSS. 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