摘要
为了进一步提高卫星定位技术服务水平,以珠海市北斗连续运行卫星导航与位置服务系统(ZHBDCORS)为研究对象进行数据质量检测与分析:对其10个基准站2014—2018年的观测数据进行批量质量检测;绘制多路径效应时间序列图;然后结合影像及周边建筑的建设时间节点进行质量分析。结果表明:系统运行至今,多数站点数据质量指标仍优于国际全球卫星导航系统服务组织(IGS)站的数据质量经验指标;部分站点由于设备遭遇雷击及周围环境变化,数据质量严重下降,更换新设备后,数据质量有明显提升;但个别站点周边遮挡严重,数据完整率差,应考虑迁站升级。分析结果可为ZHBDCORS站的维护和升级改造提供参考。
In order to further improve the service level of satellite positioning technology,taking ZHBDCORS as research objects,the paper carried out the data quality checking and analysis:the observation dataof 10 reference stations from 2014 to 2018 were batch quality checking;and the time series plots of multi-path effect were mapped;then the quality analysis was performed by combining the satellite images with the construction progress of surrounding buildings.Results showed that:since operation of the system,the data quality of most stations could be still better than that of IGS experiential index;due to lightning strike and the changes of surrounding environment,the data quality of some base stations could be seriously reduced,whileafter equipment replacement,the quality would possibly get great improvement;however,some stations should consider relocation and upgrading because of serious perimeter occlusion and poor data integrity rate.The research result would provide a reference for the maintenance and upgrade of ZHBDCORS.
作者
王东阁
李秀龙
丁建勋
WANG Dongge;LI Xiulong;DING Jianxun(Zhuhai Surveying and Mapping Institute,Zhuhai,Guangdong 519000,China)
出处
《导航定位学报》
CSCD
2019年第4期70-74,共5页
Journal of Navigation and Positioning
