卫星导航接收端抗干扰性能测试平台构建方法  

Construction method of anti-jamming performance test system for navigation satellite receiver

作　　者：郭淑霞[1] 董中要[1] 高颖[2] 

机构地区：[1]西北工业大学无人机特种技术重点实验室,陕西西安710065 [2]西北工业大学航海学院,陕西西安710072

出　　处：《红外与激光工程》2013年第8期2150-2155,共6页Infrared and Laser Engineering

基　　金：某部级基金(20212HK03010);西北工业大学科技创新基金

摘　　要：针对空间电磁环境的日益复杂化,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,为了测试动态导航接收端的抗干扰性能,提出一种室内无线抗干扰性能测试系统构建方法。采用基于灰色关联分析的场景映射方法、基于脚本的仪表驱动技术,结合信源模拟设备、微波开关、微波暗室等构建半实物仿真平台。不断调节干扰信号发射端输出功率,改变接收端有效载噪(C/N0),据此获得导航接收端失锁时的输入信干比(J/S)。仿真结果表明:通过干信比与有效载噪比的关系曲线,实现对接收端的抗干扰性能测试,为卫星导航接收端抗干扰性能测试提供测试平台。The anti-jamming performance of the Beidou navigation satellite receiver attracted the users＇ extensive attention due to the increasingly complex electromagnetic environment. A indoor wireless anti- jamming performance test system for the Beidou dynamic receiver was proposed. Semi-physical simulation system is constructed in anechoic chamber by the combination of scene mapping based on grey relational analysis （GRA）, instrumentation script-based drive technology and corresponding simulators, microwave switches. By adjusting the output power of the interference, and the receiver effective carder- to-noise ratio （C/No）, where is used to represent the anti-jamming performance, then the jam-to-signal ratio （J/S） can be obtained when the receiver is loss of lock. The simulation results show that the anti-jamming performance test of the receiver can be reflected by J/S versus C/No curve, and this method provides a test platform for the Beidou receiver anti-jamming performance test.

关 键 词：半实物仿真 抗干扰性能测试 导航接收端 灰色关联分析 场景映射 

分 类 号：TN965.5[电子电信—信号与信息处理]