摘要
随着北斗导航系统的发展,北斗二代导航系统已经建设完成,可以为亚太地区的用户提供导航与定位的服务。北斗导航系统与其他导航系统相比,混合星座的设计以及国产星设备的不同,将导致北斗数据质量评估出现差异性与复杂性。本文基于双频IGS连续跟踪站数据,从数据完整率、信噪比、多路径等常规数据质量评估指标方面实现对北斗二代混合星座的数据质量评估,并与GPS数据质量做对比分析。结果表明:北斗二代不同数据质量出现差异性,总体数据质量较好,与GPS相当。
With the development of Beidou navigation system,the Beidou second-generation navigation system has been completed,which can provide navigation and positioning services for users in the Asia-Pacific region.Compared with other navigation systems,the design of the hybrid constellation and the difference of domestic star equipment will lead to the difference and complexity of the Beidou data quality assessment.Based on the data of dual-frequency IGS continuous tracking station,this paper realizes the data quality evaluation of Beidou II hybrid constellation from the aspects of data integrity rate,signal-to-noise ratio,multi-path and other conventional data quality assessment indicators,and compares it with GPS data quality.The results show that the data quality of the second generation of Beidou is different,and the overall data quality is good,which is equivalent to GPS.
作者
李卫军
LI Weijun(Ningbo Chengbang Land Survey and Design Company Limited,Ningbo Zhejiang 315000,China)
出处
《北京测绘》
2019年第12期1532-1534,共3页
Beijing Surveying and Mapping
关键词
北斗二代
混合星座
双频
数据质量
Beidou second generation
hybrid constellation
dual frequency
data quality
