GNSS接收机抗干扰性能关键指标测试方法的研究与实现  

Research and implementation of testing method for key anti-interference performance of GNSS receiver

作　　者：朱江淼 高秀娜 黄艳 马培香 乔孟元 Zhu Jiangmiao;Gao Xiuna;Huang Yan;Ma Peixiang;Qiao Mengyuan(Faculty of Information Technology of Beijing University of Technology,Beijing 100124,China;Beijing Institute of Metrology,Beijing 100029,China)

机构地区：[1]北京工业大学信息学部,北京100124 [2]北京市计量检测科学研究院,北京100029

出　　处：《电子测量与仪器学报》2020年第3期135-141,共7页Journal of Electronic Measurement and Instrumentation

基　　金：国家重点研发计划(2017YFF0210801)资助项目。

摘　　要：抗干扰性能测试是评价导航接收机性能的重要内容,对其中两个关键指标-干扰抑制度和干扰恢复时间进行了研究。首先构建了基于导航信号模拟器的接收机抗干扰测试系统,合理地确定接收机的约束条件,通过调节干扰信号观察接收机定位性能到达约束条件,测试接收机的干扰抑制度;通过控制干扰信号输出时间,测试接收机在干扰信号过后能够恢复正常定位的延时,从而测出接收机的干扰恢复时间;最后分别对两个不同型号的接收机进行真实测试,两台接收机的性能都因干扰信号威胁而降低,干扰抑制度和干扰恢复时间的测试结果与各自整体性能水平匹配,说明该测试方法能正确评估接收机抗干扰性能。Anti-interference performance test is an important part of evaluating the performance of satellite navigation receiver. This paper focuses on two key indicators, interference rejection and interference recovery time, have been studied. Firstly, the receiver anti-interference test system based on navigation signal simulator is constructed. Reasonably determine the constraints of the receiver, by adjusting the interference signal to observe the positioning performance of the receiver to reach the constraint condition, to test the interference rejection of the receiver. By controlling the output time of the interference signal, to test the receiver’s delay time of restore normal positioning after interference signals, Then the interference recovery time of the receiver is measured. At last, two different types of receivers are tested in this paper. The performance of both receivers is degraded by the threat of interference signals, the test results of interference rejection and interference recovery time matched with their respective overall performance levels. It indicates that the test method in this paper can correctly evaluate the anti-interference performance of the receiver.

关 键 词：GNSS接收机 导航信号模拟器 抗干扰性能 干扰抑制度 干扰恢复时间 

分 类 号：TN967.1[电子电信—信号与信息处理] P228.4[电子电信—信息与通信工程]