摘要
针对目前BDS-2/BDS-3数据质量情况,本文基于IGS连续跟踪站实测数据,从数据完整率、信噪比以及多路径三个方面对比分析了BDS-2/BDS-3的MEO卫星的B3I频率的数据质量。经分析发现,BDS-3新卫星的发射增加了北斗系统的服务范围,BDS-3卫星的数据完整率与信噪比要高于BDS-2,BDS-3卫星的多路径效应小于BDS-2,没有在BDS-3卫星中观测到存在于BDS-2卫星中的系统偏差。
According to the current data quality of BDS-2/BDS-3,based on the measured data of IGS continuous tracking station,this paper compares the data quality of B3I frequency of BDS-2/BDS-3 MEO satellites from three aspects:data integrity rate,signal-to-noise ratio and multipath.It is found that the launch of the new BDS-3 satellite increases the service range of the Beidou system.The data integrity rate and signal-to-noise ratio of the BDS-3 satellite are higher than that of the BDS-2.The multipath effect of the BDS-3 satellite is smaller than that of the BDS-2,and no observation exists in the BDS-3 satellite.System deviation in the BDS-2 satellite.
作者
郑友淼
ZHENG Youmiao(Guangzhou Yuanzheng Information Technology Company Limited,Guangzhou Guangdong 510000,China)
出处
《北京测绘》
2020年第5期675-678,共4页
Beijing Surveying and Mapping
