{"id":2418,"date":"2018-07-19T16:46:34","date_gmt":"2018-07-19T08:46:34","guid":{"rendered":"https:\/\/www.fly19.net\/?p=2418"},"modified":"2018-07-19T16:46:34","modified_gmt":"2018-07-19T08:46:34","slug":"gps%e7%9a%84selective-availability","status":"publish","type":"post","link":"https:\/\/www.fly19.net\/?p=2418","title":{"rendered":"GPS\u7684Selective Availability"},"content":{"rendered":"<p>\u6700\u8fd1\u542c\u8bf4\u6709\u4e9b\u98de\u673a\u7684ADSB\u8bbe\u5907\u4e0d\u6ee1\u8db3\u7f8e\u56fd\u7684\u8fd0\u884c\u8981\u6c42\uff0c\u6211\u5f88\u8be7\u5f02\u3002\u539f\u6765\u8fd9\u4e2a\u4e0d\u6ee1\u8db3\u8981\u6c42\uff0c\u662f\u7531\u4e8eGPS\u5bfc\u822a\u7cbe\u5ea6\u5f15\u8d77\u7684\u3002GPS\u7cfb\u7edf\u6709\u4e2a\u53ebSelective Availability\u7684\u4e1c\u897f\uff0c\u662f\u7528\u6765\u6545\u610f\u964d\u4f4eGPS\u7cbe\u5ea6\u7684\u3002\u8be6\u60c5\u53ef\u4ee5\u770b\u8fd9\u4e2a\u94fe\u63a5\uff1a<a href=\"https:\/\/www.faa.gov\/about\/office_org\/headquarters_offices\/ato\/service_units\/techops\/navservices\/gnss\/gps\/policy\/availability\/\" target=\"_blank\" rel=\"noopener\">GPS Policy &#8211; Selective Availability\uff08SA\uff09<\/a>\u3002\u57282000\u5e74\u540e\uff0c\u7f8e\u56fd\u653f\u5e9c\u505c\u7528\u4e86\u8fd9\u4e2a\u529f\u80fd\u3002\u66f4\u65b0\u7684\u8bbe\u5907\u53ef\u4ee5\u8bc6\u522bSA\u662f\u5426\u5f00\u7740\uff08SA-Aware\uff09\uff0c\u5e76\u63d0\u9ad8\u5bfc\u822a\u7cbe\u5ea6\u3002\u4f46\u662f\u6709\u4e9b\u8001\u822a\u7535\u8bbe\u5907\uff0c\u4ecd\u7136\u4ee5\u4e3aSA\u529f\u80fd\u5f00\u7740\uff08SA-On\uff09\uff0c\u63d0\u4f9b\u7740\u964d\u4f4e\u7cbe\u5ea6\u7684\u6570\u636e\u3002<\/p>\n<p>\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u6709\u4e9b\u5177\u5907ADSB\u8bbe\u5907\u7684\u98de\u673a\uff0c\u5374\u8fbe\u4e0d\u5230ADSB\u8fd0\u884c\u7cbe\u5ea6\u8981\u6c42\u7684\u539f\u56e0\u3002<\/p>\n<p>\u8be6\u7ec6\u7684AC\u53ef\u4ee5\u67e5AC90-114A\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u542c\u8bf4\u6709\u4e9b\u98de\u673a\u7684ADSB\u8bbe\u5907\u4e0d\u6ee1\u8db3\u7f8e\u56fd\u7684\u8fd0\u884c\u8981\u6c42\uff0c\u6211\u5f88\u8be7\u5f02\u3002\u539f\u6765\u8fd9\u4e2a\u4e0d\u6ee1\u8db3\u8981\u6c42 &hellip; <a href=\"https:\/\/www.fly19.net\/?p=2418\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,22],"tags":[],"class_list":["post-2418","post","type-post","status-publish","format-standard","hentry","category-advisory-circulars","category-22"],"_links":{"self":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/2418","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2418"}],"version-history":[{"count":1,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/2418\/revisions"}],"predecessor-version":[{"id":2419,"href":"https:\/\/www.fly19.net\/index.php?rest_route=\/wp\/v2\/posts\/2418\/revisions\/2419"}],"wp:attachment":[{"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fly19.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}