【摘要】：基于北斗三期試驗衛(wèi)星的實測數(shù)據(jù)確定其精密軌道和鐘差,結果表明三期試驗衛(wèi)星IGSO徑向重疊弧段精度優(yōu)于7.0cm,MEO優(yōu)于5.3cm,與二期非GEO衛(wèi)星相當。采用相應軌道和鐘差產(chǎn)品進行靜態(tài)精密單點定位結果表明,在加入北斗三期試驗衛(wèi)星后,監(jiān)測站坐標平面精度優(yōu)于1.0cm,高程精度優(yōu)于2.6cm,相對于僅采用北斗二期衛(wèi)星定位結果分別提高0.5cm和1.2cm,且收斂時間縮短約2h35min。
[Abstract]:Based on the measured data of Beidou Phase III test satellite, the precision orbit and clock error are determined. The results show that the accuracy of IGSO radial overlapping arc is better than 7.0 cm, and the accuracy of MEO is better than 5.3 cm, which is similar to that of the second phase non-GEO satellite. The static precision single point positioning with the corresponding orbit and clock difference products shows that the coordinate plane accuracy of the monitoring station is better than 1.0 cm and the elevation accuracy is better than 2.6 cm after the addition of Beidou Phase III test satellite. Compared with only using Beidou Phase II satellite positioning results, the 0.5cm and 1.2 cm are increased, and the convergence time is shortened by about 2 h 35 min.
【作者單位】： 武漢大學衛(wèi)星導航定位技術研究中心;武漢大學地球空間信息技術協(xié)同創(chuàng)新中心;
【基金】：國家自然科學基金(41574030)~~
【分類號】：P228.1
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本文編號：2379008