局域BDS CORS网卫星钟差完备性监测  

Integrity monitoring of satellite clock offset based on local area BDS CORS network

作　　者：包海[1] 方书山[2] 张晶晶[1] 鄢中堡[1] 张芯[1] BAO Hai FANG Shushan ZHANG Jinjin YAN Zhongbao ZHANG Xin(Sichuan First Institute of Surveying and Mapping Engineering, Chengdu, Sichuan 610100, China Chinese Academy of Surveying and Mapping, Beijing 100830, China)

机构地区：[1]四川省第一测绘工程院,四川成都610100 [2]中国测绘科学研究院,北京100830

出　　处：《导航定位学报》2016年第4期65-68,116,共5页Journal of Navigation and Positioning

基　　金：国家自然科学基金项目(41304030);国家重点研发计划项目(2016YFB0502105);国家863计划项目(2015AA124001);四川省测绘地理信息局科技支撑项目(J2015ZC01);四川省科技厅项目(2015SZ0046);中国测绘科学研究院科研业务费支持项目(7771519;7771503)

摘　　要：针对北斗系统卫星钟差存在一定故障(粗差)发生的概率,当故障发生时不能保证导航定位的精度,而由于地面站点BDS观测数据来源的限制,对应BDS系统的钟差完备性监测方法研究论文很少的现状,着重研究了局域范围内BDS系统钟差完备性监测方法,并以某省11个CORS站点实时数据进行试验,利用残差法则查找出含有粗差钟差的BDS卫星,同时剔除粗差卫星并及时报警给用户。实验结果表明能有效实现BDS卫星的钟差完备性监测。Aiming at the current situation that there is some probability that BDS satellite clock would have trouble, and the accuracy of navigation is not guaranteed when failures occur, while it is lack of related research on integrity monitoring of satel- lite clock offset for BDS due to the limits of data source, the paper focused on the methods of integrity monitoring of BDS satel- lite clock in local area. Through the experiment of 11 CORS-site data, the satellites with clock error were found by the residual error rule, meanwhile the error satellites were removed and then users were informed in time. Result showed that the method could implement integrity monitoring of BDS satellite clock error effectively.

关 键 词：卫星钟差 完备性 参考钟 北斗网 监测 

分 类 号：P228[天文地球—大地测量学与测量工程]