北京市基准站北斗三号卫星数据质量评估  

Data quality evaluation of BDS-3 satellite at Beijing benchmark station

作　　者：任政兆 张锡越 朱照荣[1,2] 张凤录 张龙平[3] 张德志 邵华勇 REN Zhengzhao;ZHANG Xiyue;ZHU Zhaorong;ZHANG Fenglu;ZHANG Longping;ZHANG Dezhi;SHAO Huayong(Beijing Institute of Surveying and Mapping,Beijing 100038,China;Beijing Key Laboratory of Urban Spatial Information Engineering,Beijing 100038,China;Beijing Piesat Information Technology Company Limited,Beijing 100094,China;Beijing Jinhuifa Survey Technology Service Company Limited,Beijing 100070,China)

机构地区：[1]北京市测绘设计研究院,北京100038 [2]城市空间信息工程北京市重点实验室,北京100038 [3]北京航天宏图信息技术股份有限公司,北京100094 [4]北京金绘发勘测科技服务有限公司,北京100070

出　　处：《北京测绘》2024年第5期675-680,共6页Beijing Surveying and Mapping

基　　金：北京市自然科学基金青年基金(4214069)。

摘　　要：为分析北斗三号卫星导航系统(BDS-3)各频点数据在北京范围内的数据质量差异,本文使用自研全球卫星导航系统(GNSS)数据质量分析软件,从周跳比、信噪比、数据完整率、多路径效应等指标对测站进行了统计分析,对北京连续运行参考站系统(CORS)多个测站的BDS-3各频点观测数据进行质量评估。实验结果表明:BDS-3各频点均具有良好的一致性,各频点数据完整率大致相当,新增的B2a信号信噪比明显高于B1C信号,北京地区倾斜地球同步轨道(IGSO)卫星数据完整率和多路径等指标质量优于中圆地球轨道(MEO)卫星等。In order to analyze the data quality differences of Beidou navigation satellite system-3(BDS-3)frequency points within the scope of Beijing,a self-developed global navigation satellite system(GNSS)data quality analysis software was used to conduct statistical analysis on the observation stations from the aspects of cycle slip ratio,signal-to-noise ratio,data integrity rate,multipath effect,and other indicators,and the quality of BDS frequency point observation data from multiple observation stations in the Beijing continuous operational reference system(CORS)was evaluated.The experimental results show that the BDS-3 frequency points have good consistency,and the data integrity rate at each frequency point is roughly the same.The signal-to-noise ratio of the newly added B2a signal is significantly higher than that of the B1C signal.The data integrity rate,multipath effect,and other indicators of inclined geosynchronous orbit(IGSO)satellites in Beijing are better than those of medium Earth orbit(MEO)satellites.

关 键 词：质量评估 北京连续运行参考站系统(CORS) BDS-3 

分 类 号：P228[天文地球—大地测量学与测量工程]