卫星导航接收端抗干扰性能测试平台构建方法

第42卷第8期红外与激光工程2013年8月

卫星导航接收端抗干扰性能测试平台构建方法

郭淑霞1，董中要1，高颖2

(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)

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。

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

中图分类号:TN965.5文献标志码:A文章编号:1007-2276(2013)08-2150-06

Construction method of anti鄄jamming performance test

system for navigation satellite receiver

Guo Shuxia1,Dong Zhongyao1,Gao Ying2

(1.Science and Technology on UAV Laboratory,Northwestern Polytechnical University,Xi′an710065,China;

2.School of Marine Engineering,Northwestern Polytechnical University,Xi′an710072,China) Abstract: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 carrier?to?noise ratio(C/N0),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/N0curve,and this method provides a test platform for the Beidou receiver anti?jamming performance test.

Key words:semi?physical simulation;anti?jamming performance test;navigation satellite receiver;

grey relational analysis;scene mapping

收稿日期:2012-12-11;修订日期:2013-01-15

基金项目:某部级基金(20212HK03010);西北工业大学科技创新基金

作者简介:郭淑霞(1965-),女,副教授,硕士生导师,博士,主要从事卫星导航、复杂电磁环境模拟方面的研究。

Email:guoshuxia@https://www.wendangku.net/doc/8512091361.html,