摘要
由于空间电磁环境日益复杂,卫星导航接收端抗干扰性能成为北斗用户密切关注的问题。为了对接收端抗干扰性能进行测试,提出一种卫星导航接收端抗干扰性能测试系统构建方法。采用数字式仿真技术以及基于脚本的仪表驱动技术,结合信号源模拟设备、耦合器、微波暗室等构建半实物仿真系统,实现了对卫星导航接收端抗干扰性能的测试。使用接收端有效载噪比作为抗干扰性能指标,通过调节干扰信号发射端输出功率进行仿真。仿真结果表明,该系统能够得到干信比与有效载噪比的关系曲线,从而为北斗用户接收端抗干扰性能测试提供较大的参考与使用价值。
In view of the increasingly complex space electromagnetic environment, users pay more attention to the re- ceiver anti-jamming performance of satellite navigation. For testing receiver anti-jamming performance, a kind of method to construct test system was proposed. By using digital simulation technology and instrument driving technology based on script, and combining with signal simulation equipments, couplers, anechoic chamber to construct semi-physical simu- lation system, the test was realized. The effective carrier to noise ratio at the receiver was used as index of anti-jamming performance, and it was simulated by adjusting output power of the jamming signal transmitter. The simulation results show that the curve of bit error rate versus the effective carrier to noise ratio can be got by the system,which can pro- vide reference for the Beidou receiver anti-jamming performance test.
出处
《计算机科学》
CSCD
北大核心
2013年第7期28-31,共4页
Computer Science
基金
某部级基金项目(20212HK03010)
2012年西北工业大学科技创新基金
2010年西北工业大学科技创新基金资助
关键词
导航接收端
抗干扰性能测试
半实物仿真
仪表驱动
微波暗室
Navigation receiver, Anti-jamming performance test, Semi-physical simulation, Instrumentation drive, Ane-choic chamber
