多系统GNSS数据质量评估  

Multi-system GNSS Data Quality Assessment

作　　者：朱艳军 张海峰 ZHU Yanjun;ZHANG Haifeng(Ningbo Alatu Digital Technology Co.,Ltd.,Ningbo 315336,China)

机构地区：[1]宁波市阿拉图数字科技有限公司,浙江宁波315336

出　　处：《测绘与空间地理信息》2022年第2期171-173,共3页Geomatics & Spatial Information Technology

摘　　要：随着全球四大卫星导航系统的不断完善,多系统GNSS融合发展、广泛应用将成为未来一段时间的热点,而这一切均建立在能够有效保障GNSS观测数据具有较高质量的前提下。本文基于两套GNSS数据质量分析软件,从数据处理角度对4个跟踪站的三系统观测数据进行了质量评估,重点就多路径效应、数据完整率与信噪比3项评估指标在三系统中的表现进行了细致分析。分析表明:多系统GNSS融合能够一定程度降低多路径效应与增加数据利用率,明显提高定位精度。With the continuous improvement of the world’s four satellite navigation systems, multi-system GNSS fusion development and wide application will become a hot spot in the future, and all this is based on the premise of effectively guaranteeing the high quality of GNSS observation data. Based on two sets of GNSS data quality analysis software, this paper evaluates the quality of the three-system observation data of the four tracking stations from the perspective of data processing. The performance was carefully analyzed. The analysis shows that the multi-system GNSS fusion can reduce the multi-path effect and increase the data utilization rate to a certain extent, and significantly improve the positioning accuracy.

关 键 词：多系统GNSS 数据质量 质量检核 

分 类 号：P228.49[天文地球—大地测量学与测量工程]