基于现场的电磁干扰工程分析方法

Engineering Analysis of Electromagnetic Interference Based on Field

目的探讨机载平台的通信设备电磁干扰故障分析方法。方法以某型机载平台的电子通信设备电磁干扰故障为对象,在满足GJB 151或DO-160等电磁兼容要求和测试标准基础上,分析安装条件、系统架构及工作原理,通过计算和必要的测试建立故障分析数据表单,对被干扰设备非正常工作条件进行解析和仿真测试,得出解决方案。结果总结出基于现场的电磁干扰工程分析方法。结论外场条件下测试手段有限,通过该方法,可结合平台实际安装情况,给出针对性的有效解决方案。

Objective To discuss analysis technique for EMI failure of communication equipment in airborne platform. Methods EMI failure in electronic communication equipment of a certain airborne platform was taken as the researching object. Based on requirement and test standard of the EMC（GJB151 or DO160）, installation condition, system architecture and working principle were analyzed. The failure data form was established by calculations and necessary tests; and the solution was obtained by analyzing and simulating the abnormal working condition of jammed equipment. Results Analysis technique based on EMI experiment was concluded. Conclusion Based on the actual platform installation, this analysis technique could provide effective solutions under limited testing method in external conditions.