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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28290

Title: 單頻 GPS相對定位技術應用於方向角求解—GPS電子羅盤
Apply Single Frequency GPS Relative Positioning Technology on Attitude Determination
Authors: 林修國;林吉雄;柳明峰
Shiou-Gwo Lin;Chi-Hsiung Lin;Ming-Feng Liu
Contributors: NTOU:Department of Communications Navigation and Control Engineering
國立臺灣海洋大學:通訊與導航工程學系
Keywords: 電子羅盤;單頻GPS相對定位
Date: 2006
Issue Date: 2011-10-21T02:36:45Z
Publisher: 第二十五屆測量及學術應用研討會
Abstract: 摘要:利用單頻的GPS接收器進行相對定位可大幅減少儀器的成本,間接地也就可將GPS相對定位技術推廣到一般民眾使用的層面。由於大氣的影響,單獨以單頻GPS接收器進行相對定位其可求解的基線長度較短,但是在求解載具姿態角的場合,基線極短因此利用單頻GPS接收器具相當高的可行性。本文介紹一種適用於即時求解方向角的方法,該方法僅以單一時刻的資料進行相對定位的求解,包含模稜求定的工作,並以一實際開發完成的系統進行測試,該系統具有即時由兩個單頻接收器讀入資料並即時求解方向角的能力。於建築物屋頂(有些許遮蔽)的測試,利用單一時刻的資料進行方向角求解,以約80000筆的測試資料進行,其求解成功率達97%,重複性精度約為0.3度,天線距離0.6m,反推的平面向精度約為3mm,於停車場進行的動態測試,測試資料約4000筆,單一時刻求解成功率達86%。
Abstract:If low-cost single-frequency consumer GPS receiver can yield centimeter level positioning accuracy by relative positioning technology, then relative positioning technology will widely use in many fields. The major problem in single-frequency relative positioning is atmospheric effect especially ionospheric effect. This problem let single-frequency relative positioning only can solve very short baseline length. Mount multiple GPS receivers on a vehicle can estimate its attitude angle. In this situation baseline length is very short, low-cost single frequency GPS receiver is quite suitable. This paper present a real time kinematic positioning procedure, this procedure resolve ambiguities only use single epoch data. This procedure is validated by 80000 epochs’ data in static mode and 4000 epochs’ data in kinematic mode, and it gets 97% and 86% successful rate.
URI: http://ntour.ntou.edu.tw/handle/987654321/28290
Appears in Collections:[通訊與導航工程學系] 演講及研討會

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