{"id":10000,"date":"2014-09-30T16:00:13","date_gmt":"2014-09-30T07:00:13","guid":{"rendered":"http:\/\/jsapt.net\/ja\/?p=10000"},"modified":"2018-01-04T23:03:44","modified_gmt":"2018-01-04T14:03:44","slug":"16140930","status":"publish","type":"post","link":"https:\/\/jsapt.net\/ja\/post\/16140930","title":{"rendered":"Centimeter Positioning with a Smartphone-Quality GNSS Antenna (\u8ad6\u6587)"},"content":{"rendered":"<p><a href=\"https:\/\/jsapt.net\/ja\/?s=Kenneth M. Pesyna, Jr.\">Kenneth M. Pesyna, Jr.<\/a>\uff0c<a href=\"https:\/\/jsapt.net\/ja\/?s=Robert W. Heath, Jr.\">Robert W. Heath, Jr.<\/a>, <a href=\"https:\/\/jsapt.net\/ja\/?s=Todd E. Humphreys\">Todd E. Humphreys<\/a><br \/>\n[ Link to SematicScholar.org ]  <\/p>\n<p style=\"padding: 0 20px; text-align: justify;\">Abstract - This paper demonstrates for the first time that centimeteraccurate positioning is possible based on data sampled from a smartphone-quality Global Navigation Satellite System (GNSS) antenna. Centimeter-accurate smartphone positioning will enable a host of new applications such as globally-registered fiduciary-marker-free augmented reality and location-based contextual advertising, both of which have been hampered by the several-meterlevel errors in traditional GNSS positioning. An empirical analysis of data collected from a smartphone-grade GNSS antenna reveals the antenna to be the primary impediment to fast and reliable resolution of the integer ambiguities which arise when solving for a centimeter-accurate carrierphase differential position. The antenna\u2019s poor multipath suppression and irregular gain pattern result in large timecorrelated phase errors which significantly increase the time to integer ambiguity resolution as compared to even a low-quality stand-alone patch antenna. The time to integer resolution\u2014and to a centimeter-accurate fix\u2014is significantly reduced when more GNSS signals are tracked or when the smartphone experiences gentle wavelength-scale random motion.<\/p>\n<p><a href=\"https:\/\/pdfs.semanticscholar.org\/d439\/e85aab7bce7e9361fe3ad68c55c28c0e8c5a.pdf\"><\/a><\/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\/9998\/?tmstv=1791170036\" rel=\"nofollow\" id=\"download-link-9998\" data-redirect=\"false\" >\n\t&ldquo;Centimeter Positioning with a Smartphone-Quality GNSS Antenna&rdquo; \u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\t<span class=\"dlm-button-meta\">e85aab7bce7e9361fe3ad68c55c28c0e8c5a.pdf\t\t&ndash; 745 \u56de\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\t\t&ndash; 892.07 KB<\/span>\n<\/a>\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Kenneth M. Pesyna, Jr.\uff0cRobert W. Heath, Jr., Todd E. Humphreys [ Link to SematicScholar.org ] Abstract - This  [&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":[8],"tags":[38,449],"class_list":["post-10000","post","type-post","status-publish","format-standard","hentry","category-land","tag-smartphone","tag-sp"],"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>Centimeter Positioning with a Smartphone-Quality GNSS Antenna (\u8ad6\u6587) - \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\/16140930\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Centimeter Positioning with a Smartphone-Quality GNSS Antenna (\u8ad6\u6587) - \u6e2c\u4f4d\u6280\u8853\u632f\u8208\u4f1a\" \/>\n<meta property=\"og:description\" content=\"Kenneth M. 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