一种卫星导航抗干扰接收机的室内无线测试方法  

An indoor wireless test method of GNSS anti-jamming receiver

作　　者：郭淑霞[1] 张宁[1] 刘孟江[1] 董中要[1] 

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

出　　处：《计算机工程与科学》2013年第7期169-174,共6页Computer Engineering & Science

基　　金：某部级基金资助项目(20212HK03010);西北工业大学科技创新基金资助项目(2010KJ0140)

摘　　要：卫星导航抗干扰接收机室内无线抗干扰测试具有成本低、可控性好、重复性强等优点,因此得到了广泛的应用。已有室内无线抗干扰测试方法中卫星信号采用单天线输出形式、干扰信号采用静态干扰模拟方式,无法在空域上模拟卫星空间位置关系及真实的干扰场景,因而不能准确地测试出接收机的抗干扰性能。针对这个问题,提出了一种基于微波暗室的大视场角卫星导航抗干扰接收机的测试方法,通过扩大模拟信号的视场角,实现卫星信号多天线输出、干扰信号动态模拟。通过数字仿真与实测结果对比分析,验证了本文所提出的测试方法的有效性与合理性,并分析了信号模拟误差对抗干扰接收机测试带来的影响。GNSS anti-jamming receiver indoor wireless anti-jamming test has the advantages of low cost, good controllability, strong repeatability etc, so it is used widely. Under the current indoor wireless anti-jamming test method, satellite signals use a single antenna output form and interference signals use the static interference simulation. The satellites space position and the real interference scene can＇t be simulated, so the performance of GNSS anti-jamming receiver cannot be tested accurately. In order to solve the problem, a large field angle test method based on the microwave chamber is proposed, which achieves the satellite signals using multiple antenna output and the interference signals using dynamic in- terference simulation by expanding the range of the analog signals of viewing angle. According to compa- ring digital simulations with test results, the effectiveness and reasonability of the proposed method is verified, and the influence on the anti-jamming receiver performance test brought by the simulation error of signals is also analyzed.

关 键 词：卫星导航 抗干扰接收机测试 大视场角 多天线输出 动态干扰 

分 类 号：TN911[电子电信—通信与信息系统]