{"id":21391,"date":"2024-04-27T08:01:15","date_gmt":"2024-04-27T08:01:15","guid":{"rendered":"https:\/\/heylocate.mobi\/pt\/?post_type=termin&#038;p=21391"},"modified":"2024-05-01T14:18:42","modified_gmt":"2024-05-01T14:18:42","slug":"gps","status":"publish","type":"termin","link":"https:\/\/heylocate.mobi\/pt\/termin\/gps\/","title":{"rendered":"Sistema de Posicionamento Global (GPS)"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"O-que-\u00e9-GPS\">O que \u00e9 GPS?<\/h2>\n\n\n\n<p><strong>O Sistema de Posicionamento Global<\/strong> <em>(em ingl\u00eas: Global Positioning System &#8211; <em><strong>GPS<\/strong><\/em>)<\/em> \u00e9 um sistema de navega\u00e7\u00e3o por sat\u00e9lite que fornece dados precisos de posicionamento e tempo para usu\u00e1rios em todo o mundo. Originalmente concebido pelo Departamento de Defesa dos Estados Unidos para fins militares, o GPS ultrapassou suas origens para se tornar uma ferramenta indispens\u00e1vel em v\u00e1rios dom\u00ednios civis, como navega\u00e7\u00e3o, transporte e levantamento topogr\u00e1fico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Como-funciona-o-GPS\">Como funciona o GPS?<\/h2>\n\n\n\n<p>O GPS funciona atrav\u00e9s de uma rede de sat\u00e9lites que orbitam a Terra. Esses sat\u00e9lites transmitem continuamente sinais que cont\u00eam suas localiza\u00e7\u00f5es precisas e a hora atual. Quando voc\u00ea usa um receptor GPS, ele capta sinais de v\u00e1rios sat\u00e9lites acima.<\/p>\n\n\n\n<p>Calculando o tempo que cada sinal leva para alcan\u00e7ar o receptor, juntamente com o conhecimento da posi\u00e7\u00e3o exata de cada sat\u00e9lite, o receptor GPS pode <a href=\"https:\/\/heylocate.mobi\/pt\/termin\/triangulacao\/\" target=\"_blank\" rel=\"noreferrer noopener\">triangular<\/a> sua pr\u00f3pria posi\u00e7\u00e3o na Terra. Essencialmente, ele mede a dist\u00e2ncia do receptor a cada sat\u00e9lite e usa essa informa\u00e7\u00e3o para determinar sua localiza\u00e7\u00e3o exata, geralmente com not\u00e1vel precis\u00e3o.<\/p>\n\n\n\n<p>Esse processo acontece quase instantaneamente, permitindo que os usu\u00e1rios de GPS identifiquem sua localiza\u00e7\u00e3o em um mapa, naveguem rotas e rastreiem movimentos em tempo real.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"Principais-Atributos\">Principais Atributos<\/h3>\n\n\n\n<p>O GPS se distingue de outras tecnologias de navega\u00e7\u00e3o. Seus principais atributos incluem:<\/p>\n\n\n\n<ul>\n<li><strong>Precis\u00e3o:<\/strong> O GPS se destaca entre os sistemas <a href=\"https:\/\/heylocate.mobi\/pt\/termin\/gnss\/\" target=\"_blank\" rel=\"noreferrer noopener\">globais de navega\u00e7\u00e3o por sat\u00e9lite (GNSS)<\/a>, como GLONASS, Galileo e BeiDou, por sua excepcional precis\u00e3o ao fornecer dados de posicionamento.<\/li>\n\n\n\n<li><strong>Cobertura:<\/strong> Com sua extensa rede de sat\u00e9lites, o GPS oferece uma cobertura global incompar\u00e1vel, superando outros sistemas GNSS. Isso garante confiabilidade e efic\u00e1cia em diversas localiza\u00e7\u00f5es geogr\u00e1ficas em todo o mundo.<\/li>\n\n\n\n<li><strong>Disponibilidade:<\/strong> Sendo operacional por um per\u00edodo prolongado, o GPS possui um hist\u00f3rico comprovado de confiabilidade e acessibilidade para os usu\u00e1rios. Sua longevidade e ado\u00e7\u00e3o generalizada proporcionam confian\u00e7a em sua disponibilidade cont\u00ednua.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Perspectivas-T\u00e9cnicas\">Caracter\u00edsticas t\u00e9cnicas<\/h2>\n\n\n\n<p>O GPS \u00e9 baseado em uma constela\u00e7\u00e3o de sat\u00e9lites e nos sinais que eles transmitem. Cada sinal de GPS opera em bandas de frequ\u00eancia distintas e atende a uma finalidade espec\u00edfica, por exemplo, posicionamento padr\u00e3o, aplica\u00e7\u00f5es militares ou precis\u00e3o aprimorada. Corre\u00e7\u00f5es de relatividade s\u00e3o aplicadas aos sinais GPS para contabilizar a dilata\u00e7\u00e3o temporal causada pelas altas velocidades dos sat\u00e9lites e os campos gravitacionais que eles experimentam.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Banda L1<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Usada para posicionamento e navega\u00e7\u00e3o padr\u00e3o<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Banda L2<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Fornece um sinal adicional para usu\u00e1rios militares e oferece maior precis\u00e3o<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Sinal L5<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Um sinal mais novo que melhora ainda mais a precis\u00e3o dos receptores GPS<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"GPS-Al\u00e9m-da-Navega\u00e7\u00e3o\">GPS: Al\u00e9m da Navega\u00e7\u00e3o<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">T\u00f3pico<\/th><th class=\"has-text-align-left\" data-align=\"left\">Descri\u00e7\u00e3o<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Aplica\u00e7\u00f5es do GPS<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Capacidades de navega\u00e7\u00e3o<br>Rastreamento de ve\u00edculos<br>Gest\u00e3o de frotas<br>Agricultura de precis\u00e3o<br>Servi\u00e7os de <a href=\"https:\/\/heylocate.mobi\/pt\/termin\/geolocalizacao\/\" target=\"_blank\" rel=\"noreferrer noopener\">geolocaliza\u00e7\u00e3o<\/a><br>Integra\u00e7\u00e3o em smartphones, tablets e smartwatches<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Sistemas de Navega\u00e7\u00e3o Internacional<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">GLONASS, Galileo, BeiDou<br>Oferecem cobertura regional ou global<br>Reduzem a depend\u00eancia do GPS<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Desafios e Preocupa\u00e7\u00f5es<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Seguran\u00e7a e confiabilidade dos sinais GPS<br>Ataques de jamming e <a href=\"https:\/\/heylocate.mobi\/pt\/termin\/gps-spoofing\/\" target=\"_blank\" rel=\"noreferrer noopener\">spoofing<\/a><\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Import\u00e2ncia na Seguran\u00e7a Global<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Opera\u00e7\u00f5es militares, resposta a desastres, busca e resgate dependem de informa\u00e7\u00f5es precisas de GPS<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\"><strong>Avan\u00e7os Futuros do GPS<\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\">Pesquisa para melhorar a precis\u00e3o, confiabilidade e disponibilidade dos sinais GPS<br>Integra\u00e7\u00e3o com 5G e ve\u00edculos aut\u00f4nomos<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"Refer\u00eancias\">Refer\u00eancias<\/h2>\n\n\n\n<ol>\n<li>United States Department of Transportation; Federal Aviation Administration (October 31, 2008). &#8220;<a href=\"https:\/\/www.gps.gov\/technical\/ps\/2008-WAAS-performance-standard.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Global Positioning System Wide Area Augmentation System (WAAS) Performance Standard<\/a>&#8221; (PDF).<\/li>\n\n\n\n<li>Science Reference Section (November 19, 2019). &#8220;<a href=\"https:\/\/www.loc.gov\/everyday-mysteries\/item\/what-is-gps-how-does-it-work\/\" target=\"_blank\" rel=\"noreferrer noopener\">What is a GPS? How does it work<\/a>?&#8221;. Everyday Mysteries. Library of Congress.<\/li>\n\n\n\n<li>National Coordination Office for Space-Based Positioning, Navigation, and Timing (February 22, 2021). &#8220;<a href=\"https:\/\/www.gps.gov\/systems\/gps\/\" target=\"_blank\" rel=\"noreferrer noopener\">What is GPS<\/a>?&#8221;. GPS.gov: GPS Overview<\/li>\n\n\n\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Global_Positioning_System\" target=\"_blank\" rel=\"noreferrer noopener\">Global Positioning System<\/a> &#8211; Wikipedia<\/li>\n\n\n\n<li><a href=\"https:\/\/www.civilsimplified.com\/resources\/what-is-gps\" target=\"_blank\" rel=\"noreferrer noopener\">What is GPS<\/a>?<\/li>\n\n\n\n<li><a href=\"https:\/\/www.nationalgeographic.org\/encyclopedia\/gps\/\" target=\"_blank\" rel=\"noreferrer noopener\">GPS<\/a> &#8211; National Geographic<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>O que \u00e9 GPS? O Sistema de Posicionamento Global (em ingl\u00eas: Global Positioning System &#8211; GPS) \u00e9 um sistema de navega\u00e7\u00e3o por sat\u00e9lite que fornece dados precisos de posicionamento e tempo para usu\u00e1rios em todo o mundo. Originalmente concebido pelo&#8230;<\/p>\n","protected":false},"featured_media":0,"parent":0,"menu_order":0,"template":"","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>O que \u00e9 GPS?<\/title>\n<meta name=\"description\" content=\"Defini\u00e7\u00e3o de GPS, significado, principais atributos e explica\u00e7\u00e3o de como o GPS funciona tecnicamente. 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