BDS/GPS组合系统定位性能分析

Analysis of positioning performance on combined BDS/GPS system

本文通过对比分析BDS、GPS、GLONASS、Galileo的发展现状和服务性能,探讨了BDS/GPS组合导航定位的相对优势。从可见性和定位精度方面对BDS/GPS组合系统的定位性能进行了仿真分析,给出了定量分析结果。仿真结果表明,采用BDS/GPS组合系统导航定位能够有效提高用户的定位精度和可见性,研究成果对BDS/GPS组合导航定位的精度验证和工程实现具有一定的参考价值。

By comparing the development status and service performance between BDS, GPS, GLO- NASS and Galileo, the relative advantages of BDS/GPS integrated navigation and positioning were dis- cussed in the paper. The simulations on the positioning performance of the combined BDS/GPS system were prosecuted from aspects of satellite visibility and positioning accuracy,and the results of quantitative analysis were given. The results showed that the combined BDS/GPS system could effectively improve the positioning accuracy and satellite visibility, and the achievement would be valuable in the accuracy valida- tion and engineering practice of BDS/GPS integrated navigation and positioning.