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伽利略卫星导航系统仿真研究

发表时间:2008-03-31  浏览量:1419  下载量:679
全部作者: 李悦
作者单位: 北京邮电大学电信工程学院
摘 要: 伽利略系统是当前最为瞩目的国际空间工程。它是欧洲独立拥有的全球卫星导航定位系统,能够提供专为民用设计的高精度和高保证的全球定位服务。伽利略系统的导航定位精度高(平均数量级单位为米),具有极大的实用性和商业价值。本文以伽利略系统为研究对象,首先介绍了伽利略系统的组成。接着,引入了伽利略系统仿真工具(GSSF)。然后,通过GSSF平台,进行了伽利略系统,全球定位系统(GPS)和GNSS联合系统的可见性,覆盖深度两个性能指标的仿真,并对三者的结果进行了横向地对比和研究。同时以中国国土范围为参考,得到了伽利略系统在中国上空的可见性图。对于覆盖深度,还进行了卫星上行链路站操作失败的仿真试验,在MASUDA站(纬度30.55°,经度131.016°)正常工作与否的情况下,进行了两次覆盖深度的仿真。最后,根据仿真结果,得出结论,并进行了分析总结。
关 键 词: 地球探测与信息技术\0牐毁だ韵低承阅芊抡妫蝗蚨ㄎ幌低常℅PS);伽利略系统仿真工具;可见性;覆盖深度
Title: Investigation of performance simulation in Galileo navigation system
Author: LI Yue
Organization: School of Telecommunication Engineering, Beijing University of Posts and Telecommunications
Abstract: The Galileo system is the most international space project. It is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service specifically designed for civil purposes. Because of high position-accuracy. The Galileo system has tremendous practicability and business-value. This paper aims to study the Galileo system, introducing the first satellite positioning and navigation system under civilian control in the world——the Galileo system. At the beginning, the constitution of Galileo is presented in this paper. And then, Galileo System Simulation Facility(GSSF) is brought into this paper. After that, the core part of this paper is demonstrated. This main task is carrying on the simulations of Galileo, GPS, GNSS’s performances, based on GSSF platform, including the visibility and the depth of coverage, and completing the contrast and study of the simulation results. In the meanwhile, we gain the pictures of visibility, referring to the territory of CHINA. For the depth of coverage, we also carry through the simulation test in the case of failures of up-link stations. In this case, we realize two simulations of the coverage-depth when the ULS MASUDA station(latitude: 30.55°, longitude: 131.016°) is successful or not, then, make a contrast of them. Finally, analysis and conclusion are given according to the simulation results.
Key words: global detection and information technology; Galileo; global position system(GPS); galileo system simulation facility(GSSF); visibility; depth of coverage
发表期数: 2008年7月第6期
引用格式: 李悦. 伽利略卫星导航系统仿真研究[J]. 中国科技论文在线精品论文,2008,1(6):657-664.
 
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