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GPSの測位精度-8 : 海外の定点における測定 2
http://hdl.handle.net/10069/29876
http://hdl.handle.net/10069/29876c8a80894-859c-4682-b0f4-3ffad7ddc76f
名前 / ファイル | ライセンス | アクション |
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suisan70_019.pdf (612.6 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2012-11-28 | |||||
タイトル | ||||||
タイトル | GPSの測位精度-8 : 海外の定点における測定 2 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | GPS | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | gloval positioing system | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 選択利用性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | selective availability | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 測位精度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | accuracy of position fixes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 鶴洋丸 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | KAKUYO MARU | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
久野, 俊行
× 久野, 俊行× 合田, 政次× 中根, 重勝 |
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著者別名 | ||||||
姓名 | Kuno, Toshiyuki | |||||
著者別名 | ||||||
姓名 | Goda, Masaji | |||||
著者別名 | ||||||
姓名 | Nakane, Shigekatsu | |||||
その他のタイトル | ||||||
その他のタイトル | Accuracies of Position Fixes Obtained by GPS―VIII The Observation at Foreign Fixed Stations (2) | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We have measured the usable time and got position fixes from overseas fixed stations for the past three years in order to evaluate the positioning accuracy of GPS. We were able to receive positioning signals from only 6 satellites until 1989, but in October 1990, 15 GPS satellites became available. And the orbits of satellites have been corrected. The usable time was 7~9 hours until 1989, but it came to be more than 18 and a half hours in 1990. Then we were generally able to get position fixes by 3D (three-dimensional positioning) and the high level of 2D3 (two-dimensional positioning with three satellites). Therefore, position fixes of 2D2 (two-dimensional positioning with two satellites) became hardly necessary. The accuracy of position fixes went down once in 1989. In 1990, the standard deviations of D. lat (difference of latitude) and Dep (departure) were kept less than 45 meters. We may conclude that in spite of selective availability, the accuracy has been improved owing to the increasing number of GPS satellites and the correction of thier orbits. | |||||
書誌情報 |
長崎大学水産学部研究報告 en : Bulletin of the Faculty of Fisheries, Nagasaki University 巻 70, p. 19-28, 発行日 1991-08 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05471427 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178473 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
論文ID(NAID) | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 40002770908 | |||||
出版者 | ||||||
出版者 | 長崎大学水産学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学水産学部研究報告, v.70, pp.19-28; 1991 |