System architecture and software design of high-dynamic GPS signal simulator
-
摘要: 给出了具有实时性、灵活性和可扩展性的整个GPS(Global Positioning System,全球定位系统)模拟器闭环测试系统的结构,引入了数据收集用GPS接收机;推导了多路高动态GPS信号的数学模型,并提出在信号状态计算中增加两个参数以反映高动态的影响;在此基础上建立了模拟器软件的体系结构,并给出了软件设计实例和仿真结果.所设计的GPS信号模拟器可以为GPS用户端设备的参数测量、软硬件调试、性能测试和评估等提供一个逼真的高动态信号环境.Abstract: The hardware-in-the-loop system architecture of GPS simulator was presented, which was flexible, expansible and capable of real rime test, and a data-collecting GPS receiver was introduced into the system. The mathematic model of high-dynamic GPS signal was derived, and it was suggested to add two parameters to emulate high-dynamic effects. The structure of the simulator software was established. A software design instance and its simulation results were given. The simulator designed can provide a realistic high-dynamic signal environment for parameters measurement, software and hardware debug, performance test and evaluation of GPS UE.
-
Key words:
- simulators /
- doppler shift /
- high-dynamic /
- global positioning system /
- hardware-in-the-loop test system
-
[1] Lazar S, Bottjer M. A GPS modernization simulator . In:Proceedings of ION 11th Annual Meeting . Nashville:The Institute of Navigation, 1998. 1887~1895 [2] 陆 娟,常 青,张其善,等. 十二通道GPS信号发生器方案研制[J]. 北京航空航天大学学报,2003,29(4):331~334 Lu Juan, Chang Qing, Zhang Qishan, et al. Design of a twelve-channel digtal GPS simulation system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003,29(4):331~334(in Chinese) [3] 陆 娟,常 青,张其善.十二通道GPS信号模拟器的硬件设计[J]. 遥测遥控,2003,24(6):15~19 Lu Juan, Chang Qing, Zhang Qishan. Hardware design of 12-channel GPS signal simulator[J]. Journal of Telemetry, Tracking and Command, 2003,24(6):15~19(in Chinese) [4] Spilker Jr J J, Van Dierendonck A J. Proposed new L5 civil GPS codes[J]. Navigation, 2001,48(3):135~143 [5]Brown A, Gerein N. Modular GPS software radio architecture . In:Gibbons G, ed. Proceedings of ION GPS 2001 . Salt Lake City, Utah:ION, 2001.2048~2058 [6]Parkinson B W, Spilker Jr J J. Global positioning system:theory and applications (volume I) [M]. Washington:AIAA, 1996. 57~119,469~513 [7]Kaplan E D. Understanding GPS:principles and applications[M]. Boston:Artech House Publishers, 1996 -
点击查看大图
计量
- 文章访问数: 3790
- HTML全文浏览量: 193
- PDF下载量: 9
- 被引次数: 0
下载:
