A BDS Constellation URE Evaluation Method based on the Probability Statistics Characteristics under

来源 :第七届中国卫星导航学术年会 | 被引量 : 0次 | 上传用户：huanxia185

【摘要】

：

Beidou navigation satellite system (BDS) can provide regional services at present.Its ground segments are mostly within the territory of china which leads to the lack of whole arc monitoring for some

【作者】

：

Tongyu CHE Chuanding ZHANG Li YANG Wei FENG

【机构】

：

Information Engineering University, Beidou Navigation Technology Collaborative Innovation Center of

【出处】

：

第七届中国卫星导航学术年会

【发表日期】

：

2016年5期

【关键词】

：

BDS Mixed Constellation AOD URE Probability statistics Weighting algorithm

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　　Beidou navigation satellite system (BDS) can provide regional services at present.Its ground segments are mostly within the territory of china which leads to the lack of whole arc monitoring for some satellites.In order to reflect the influence of BDSs mixed constellation (GEO+IGSO+MEO) and the exploration of broadcast ephemeris due to lack of whole arc monitoring,the paper conducted the URE evaluation of BDS constellation based on the constrained condition of Age of Data (AOD).The paper got the URE features of single satellite by analyzing the probability statistics characteristics under AOD,and then evaluated the constellations URE based on the weight conducted from the above.The verification of the method was done by the real data.

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A BDS Constellation URE Evaluation Method based on the Probability Statistics Characteristics under

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