GNSS互操作对区域导航定位性能的改善

摘要

随着全球导航卫星系统（GNSS）的快速发展，各卫星系统间的互操作成为近年来关注的热点。本文在阐述GNSS互操作概念及优势等方面的基础上，以单一系统、双系统及多系统互操作对比为例，针对观测卫星数和精度衰减因子（DOP）两个指标，对我国范围内用户的导航定位性能进行仿真。仿真结果表明：GNSS互操作能够较好地改善导航定位性能。%With the rapid development of the GNSS (Global Navigation Satellite Sys‐tem) ,the interoperability of multi‐systems is widely focused in recent years .It’s expressed that the development of GNSS ,then took the comparison between the sole navigation satel‐lite system (BDS) and multi‐system as an example ,making the simulation of the navigation and position performance in our homeland with the two indices :observed satellite number and DOP .The result of the simulation shows that the performance of the navigation and po‐sitioning is distinctly improved by multi‐system interoperability .