摘要
北斗导航系统是我国自主研发的导航系统,其数据质量一直是国内外专家学者研究的重点。针对不同环境下的北斗数据质量,本文基于桥梁环境下、超高层环境下以及正常环境下的北斗实测数据,从可见卫星数、PDOP值、信噪比以及多路径四个方面评估了北斗数据质量,经研究分析发现三种监测环境下的北斗卫星可见数基本一致,正常环境下的北斗数据质量优于桥梁环境下的北斗数据质量和超高层环境下的北斗数据质量,其中超高层环境下的北斗数据质量最差。
The Beidou navigation system is an independently developed navigation system in China,and its data quality has always been the focus of research by experts and scholars at home and abroad.Aiming at the Beidou data quality in different environments,this paper evaluates the Beidou data quality from four aspects:the number of visible satellites,the PDOP value,the signal-to-noise ratio,and the multipath.According to research and analysis,it is found that the number of visible Beidou satellites in the three monitoring environments is basically the same.The quality of Beidou data in the normal environment is better than the quality of Beidou data in the bridge environment and the Beidou data quality in the super high-level environment.Beidou data has the worst quality.
作者
郑艺城
ZHENG Yicheng(Xiamen Yilijiao Information Technology Company Limited,Xiamen Fujian 361000,China)
出处
《北京测绘》
2020年第6期833-836,共4页
Beijing Surveying and Mapping
关键词
北斗
数据质量
不同环境
Beidou
data quality
different environments
