导航接收机BIT虚警原因及解决方案  

Cause and Solution of BIT False Alarm in Navigation Receiver

作　　者：井维[1] JING Wei

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2023年第1期43-47,共5页Modern Navigation

摘　　要：导航接收机在实际应用中,多次发生接收机BIT虚警现象,分析认为是BIT硬件电路中的自检信号产生电路故障导致。结合接收机BIT原理对故障进行了详细分析,并通过仿真实验验证了故障定位的准确性和机理分析的正确性,最后给出了详细解决方案并在实际应用中得到验证。In practical application of navigation receiver, the BIT false alarm phenomenon of receiver occurs many times, and it is considered that it is caused by the circuit failure of self-test signal in BIT hardware circuit. The fault is analyzed in detail based on the principle of receiver BIT,and the accuracy of fault location and the correctness of mechanism analysis are verified by simulation experiments. Finally, the detailed solution is given and verified in practical application.

关 键 词：导航接收机 机内测试 虚警 

分 类 号：V243[航空宇航科学与技术—飞行器设计]