摘要
差分增强技术能够有效提升卫星导航系统性能,然而公开发行的仿真平台难以全面便捷地研究该技术。设计了以差分和完好性研究需求为导向的综合仿真平台,可灵活配置星座、伪距误差、监测站、用户接收机等参数,具备完好性故障仿真功能,采用与接收机无关的数据交换格式和标准产品3轨道格式输出数据以便于程序间数据交换,可扩展调用用户插件进行数据分析。利用商业导航后处理软件GrafNav评估该平台性能,结果表明该平台输出数据与真实接收机输出数据的定位精度相当,可有效支持差分增强技术的研究。
Augmentation is a method that can effectively improve the performance of GNSS. Considering that public re- leased simulators cannot satisfy the research of various augmentation technologies, this paper proposes an integrated simulation platform for differential and integrity study on GNSS, which can configure parameters such as constellations, pseudorange er- rors, stations and the user receiver, and is capable of simulating the failure. The simulation data is output in RINEX or SP3 format for the convenience of exchanging data in different analysis software. The evaluation based on GrafNav shows that the performance of simulation data is similar to that of data collected by a real GNSS receiver. Therefore, the simulation platform can effectively support the augmentation research.
出处
《导航定位学报》
2014年第1期62-66,共5页
Journal of Navigation and Positioning
基金
国家973资助项目(2010CB731805)
关键词
差分
增强
完好性
仿真平台
differential augmentatiom integrity
simulation
