{"id":6582,"date":"2001-01-09T12:00:25","date_gmt":"2001-01-09T03:00:25","guid":{"rendered":"http:\/\/jsapt.net\/ja\/?p=6582"},"modified":"2018-01-06T20:07:50","modified_gmt":"2018-01-06T11:07:50","slug":"16160109-2","status":"publish","type":"post","link":"https:\/\/jsapt.net\/ja\/post\/16160109-2","title":{"rendered":"Global Positioning System: \"Defense Navigation Satellite Development Program\" circa 1979 USAF"},"content":{"rendered":"<p><a href=\"https:\/\/jsapt.net\/ja\/?s=Jeff Quitney\">Jeff Quitney<\/a><br \/>\n[ Link to YouTube ] <\/p>\n<p style=\"padding: 0 20px; text-align: justify;\">Overview - On developing the Defense Navigation Satellite (Navstar) satellite system, later known as the Global Positioning System. Public domain film from the Library of Congress Prelinger Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and one-pass brightness-contrast-color correction & mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and\/or equalization (the resulting sound, though not perfect, is far less noisy than the original).<\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=BtTLenuKVO0\" \/><\/p>\n\n<div class=\"wp-block-button\">\n<a  data-e-Disable-Page-Transition=\"true\" class=\"dlm-download-link dlm-download-button wp-block-button__link wp-element-button\" title=\"\u30d0\u30fc\u30b8\u30e7\u30f3 1\" href=\"https:\/\/jsapt.net\/ja\/download\/6580\/?tmstv=1791168482\" rel=\"nofollow\" id=\"download-link-6580\" data-redirect=\"false\" >\n\t&ldquo;Global Positioning System: \"Defense Navigation Satellite Development Program\" circa 1979 USAF&rdquo; \u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\t<span class=\"dlm-button-meta\">watch\t\t&ndash; 783 \u56de\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\t\t&ndash; <\/span>\n<\/a>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Jeff Quitney [ Link to YouTube ] Overview - On developing the Defense Navigation Satellite (Navstar) satellite [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","vkExUnit_EyeCatch_disable":"","_veu_custom_css":"","veu_display_promotion_alert":"","vkexunit_cta_each_option":"","footnotes":""},"categories":[14],"tags":[33],"class_list":["post-6582","post","type-post","status-publish","format-standard","hentry","category-gnsspos","tag-gps"],"veu_head_title_object":{"title":"","add_site_title":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Global Positioning System: &quot;Defense Navigation Satellite Development Program&quot; circa 1979 USAF - \u6e2c\u4f4d\u6280\u8853\u632f\u8208\u4f1a<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jsapt.net\/ja\/post\/16160109-2\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Global Positioning System: &quot;Defense Navigation Satellite Development Program&quot; circa 1979 USAF - 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