摘要
为了研究北斗地球静止轨道/倾斜地球同步轨道/中圆地球轨道(GEO/IGSO/MEO)混合星座对控制测量的影响,该文首先推导了GEO和IGSO/MEO卫星的轨道计算流程,并通过某北斗控制网进行了算例分析。尽管已有文献表明GEO卫星的轨道误差明显大于IGSO卫星,但本文的实验发现GEO卫星能明显改善IGSO卫星的位置精度因子值,从而改善控制测量的定位性能。使用混合的北斗GEO+IGSO+MEO卫星,与GPS控制测量具有最好的一致性,平面坐标差异不超过2 mm,高程在3 mm左右。
To study the the impact of geostationary Earth orbit/inclined geo-synchronous orbit/medium Earth orbit(GEO/IGSO/MEO)satellites on BeiDou navigation satellite system(BDS)control survey,this paper first derived the orbit calculation equations of GEO and IGSO/MEO satellites.Then an example analysis was conducted through a BDS control network.The results showed that although the orbit error of the GEO satellite was obviously larger than that of the IGSO satellite,the GEO satellite could significantly improve the position dilution of precision(PDOP)value of the IGSO satellite,thereby improving the positioning performance of the control network.The adoption of BDS GEO+IGSO+MEO satellite had the best consistency with the global positioning system(GPS)solution.Their coordinate differences were<2 mm and about 3 mm in the plane and vertical directions,respectively.
作者
苏艳华
韩飞
吴浩
SU Yanhua;HAN Fei;WU Hao(CCCC Second Highway Consultants Co.,Ltd.,Wuhan 430056,China;China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan 430056,China)
出处
《测绘科学》
CSCD
北大核心
2020年第12期40-44,共5页
Science of Surveying and Mapping
基金
中交第二公路勘察设计研究院有限公司重大项目(KJFZ-2019-026)。
