{"id":852,"date":"2004-12-03T10:51:00","date_gmt":"2004-12-03T09:51:00","guid":{"rendered":"https:\/\/kids.esa.int\/satellite_navigation\/"},"modified":"2026-10-08T00:33:00","modified_gmt":"2026-10-07T22:33:00","slug":"satellite_navigation","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/satellite_navigation\/","title":{"rendered":"Naviga\u021bia prin satelit"},"content":{"rendered":"
\n

Cu mult timp \u00een urm\u0103, cei care navigau pe mare \u00ee\u0219i g\u0103seau drumul studiind pozi\u021biile Soarelui, Lunii \u0219i stelelor. Apoi, \u00een jurul anului 1300, apari\u021bia busolei le-a u\u0219urat pu\u021bin via\u021ba acestor navigatori.<\/p>\n<\/div>\n

Ast\u0103zi, datorit\u0103 tehnologiei spa\u021biale, nimeni nu se mai poate r\u0103t\u0103ci. Orice persoan\u0103, ma\u0219in\u0103, nav\u0103 sau aeronav\u0103 echipat\u0103 cu un sistem de naviga\u021bie prin satelit \u00ee\u0219i poate determina pozi\u021bia cu o precizie de 15-20 de metri.<\/p>\n

Naviga\u021bia prin satelit se bazeaz\u0103 pe utilizarea unui receptor care \u00ee\u0219i calculeaz\u0103 pozi\u021bia cu ajutorul semnalelor transmise de cel pu\u021bin patru sateli\u021bi.<\/p>\n

\"GPS\"
GPS<\/figcaption><\/figure>\n

Sistemul pe care \u00eel folosim ast\u0103zi \u00een via\u021ba de zi cu zi a fost ini\u021bial dezvoltat \u00een scopuri militare. \u00centre 1960 \u0219i 1968, armata american\u0103 a lansat 23 de sateli\u021bi de naviga\u021bie pentru a facilita naviga\u021bia submarinelor Polaris.<\/p>\n

Acestea au evoluat \u00een cele din urm\u0103 c\u0103tre Sistemul Global de Pozi\u021bionare (GPS). Un sistem similar, denumit Glonass, a fost introdus de armata rus\u0103. Ambele sunt acum disponibile at\u00e2t pentru uz civil, c\u00e2t \u0219i pentru uz militar. De aceea, Europa a dorit s\u0103 dispun\u0103 de propriul sistem garantat.<\/p>\n

Europa a introdus acum un sistem numit EGNOS, care \u00eembun\u0103t\u0103\u021be\u0219te precizia sistemului GPS. De asemenea, ESA \u0219i Comunitatea European\u0103 dezvolt\u0103 \u00een comun propriul sistem european de naviga\u021bie civil (nemilitar). Denumit Galileo, acesta va fi primul sistem complet civil de naviga\u021bie global\u0103.<\/p>","protected":false},"excerpt":{"rendered":"

Long ago, people who sailed the sea found their way by studying the positions of the Sun, Moon and stars. Then, around 1300, the introduction of the compass made life […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2001\/01\/galileo2\/17866193-3-eng-GB\/Galileo.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/01\/Galileo2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,54,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-852","post","type-post","status-publish","format-standard","hentry","category-learn","category-space-technologies-on-earth","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/852","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=852"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/852\/revisions"}],"predecessor-version":[{"id":4707,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/852\/revisions\/4707"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=852"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=852"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=852"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=852"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=852"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=852"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=852"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}