- 期刊
GPS/GLONASS多衛星信號整合分析之研究
The Study of Analysis for GPS/GLONASS Multi-satellite Signals Integrated
摘要
本研究利用國內裝備新型GPS/GLONASS整合式接收儀之衛星追蹤站進行原始資料蒐集，使用之追蹤站有理工學院、竹南、宜蘭、台中、台南五站。將24小時之觀測量分成不同長度之時間段處理，利用瑞士伯恩大學開發之Bernese5.0計算軟體進行數據分析。在單點定位的應用上，結合GPS與GLONASS衛星可降低定位之精度因子DOP值。其次，比較單一GPS衛星定位統與GPS/GLONASS整合式衛星定位系統在差分定位應用之效益與定位能力。結果顯示整合GPS/GLONASS系統之3小時資料求解可增加約57%~82%之基線觀測量，並可提高36%~81%之周波未定值求解率。本研究亦證明整合GPS/GLONASS系統確可降低基線與坐標求解之均方根差，並得到較高的定位精度。
並列摘要
With GLONASS configuration built by Russian and GLONASS precise ephemeris provided by International GNSS Service, GPS/GLONASS receivers have been produced to markets. It is possible for precise positioning by using GPS and GLONASS multi-satellite signals integrated observations. In this study, the raw data integrated from GPS/GLONASS multi-satellite signals of receivers of the tracking stations included CCIT, JN08, YL14, TC17 and TN11 five points in Taiwan. Divided 24 hours data was dealt with the Bernese 5.0 software developed by the University of Bern in Switzerland. This work primarily investigated single point positioning application, and the value of dilution of precision（DOP）could be decreased by integrating GPS and GLONASS satellites. Then, the work studied the signal availability and positioning Reliability of differential positioning compared with GPS-only, GLONASS-only and GPS/GLONASS systems. Results show that 3 hours data of GPS/GLONASS integrated systems baselinesobservations could be improved 57%~82% compared with GPS-only and GLONASS-only systems in different observation periods, and the resolutions of ambiguity could be improved 36%~81%. This study also proved that RMS errors of baselines and coordinates computation could be reduced, and the better accuracy of positioning could be achieved by GPS/GLONASS satellites integrated system.