“北斗一号”导航定位动态信号的模拟实现  

Simulation and Implementation of BD-1 Dynamic Navigation Signals

作　　者：张桂华[1] 孙彩英[2] 

机构地区：[1]西安电子科技大学,陕西西安710071 [2]中电集团第五十四研究所,河北石家庄050081

出　　处：《系统仿真学报》2005年第11期2731-2733,2744,共4页Journal of System Simulation

摘　　要：随着GPS、GLONASS、GALILEO和我国北斗导航系统的建设,各种导航定位用户机在国民经济和国防建设中的应用越来越广泛,其性能也越来越受到用户的重视和关心。如何进行导航定位用户机的测试与试验,是很多用户必须面临的问题。采用卫星导航信号模拟器,仿真真实的导航信号环境,对用户机进行功能检查和性能试验,是解决这一问题的有效途径。该文介绍了“北斗一号”双星定位系统的工作机制以及动态信号的模拟要求,详细阐述了模拟信号各种动态特征的实现途径,并对模拟信号进行了计算机仿真和系统实现。仿真和试验结果表明:“北斗一号”双星定位动态信号的模拟实现途径可行,能够满足各种用户设备的性能测试与验证。With the development of satellite radio navigation systems such as GPS, Glonass, Galileo and Chinese BD-1, various user receivers have found wide application, whose capability consequently attracts more attention. A practical solution to test those equipments was to design a satellite radio navigation signal emulator to simulate the real environment. An introduction of BD-1 Navigation System and the requirement of its dynamic navigation signals was given, followed by the design in detail, computer simulation and system implementation. Both simulations and results show that the method presented to simulate BD-1 signals is practical, which can meet the requirement to test and verify the performance of the user equipments well.

关 键 词：卫星导航 动态模拟 系统仿真 双星定位 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]