Research on several test issues of electromagnetic radiation susceptibility for electronic equipment
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摘要: 针对部分电子设备通过国军标所规定的电磁兼容试验考核后，在实际训练、作战使用过程中仍存在电磁不兼容等现实问题，在对现行标准中的技术要求和测试方法进行系统分析的基础上，结合研究团队近几年在电子信息装备电磁环境效应研究方面的技术积累，探讨了测试过程中未寻找受试设备敏感接收方向、带内频点电磁辐射敏感度测试缺失以及多辐射源共同作用导致受试设备敏感度阈值显著降低等几个方面对电子信息装备电磁辐射敏感度测试结果的影响，在此基础上给出了解决上述相关问题的措施和建议，探讨了强场电磁辐射效应试验技术及电子设备复杂电磁环境适应性评估技术的发展趋势。Abstract: According to the practical problem that some electronic equipments still exist electromagnetic incompatibility phenomenon in training and fighting stage after passing the normal electromagnetic compatibility test required by National Military Standard of China, on the basis of systematically analyzing the technical requirements and test methods in the current military standard, considering the technology accumulation of our research team on the electronic information equipment electromagnetic environment effects in recent years, the influence the several conditions on the electronic information equipment electromagnetic radiation susceptibility test results were discussed. These conditions contain not searching the sensitive receiving direction of the equipment under test(EUT), lacking of electromagnetic radiation susceptibility test in in-band frequency, multi-source radiation causing remarkable reduction of the susceptibility threshold of the EUT and so on. On the basis of the discussion, the measures and suggestions which can solve the above related problems were given. The development tendency of the high intensity electromagnetic radiation effect test technology and the complex electromagnetic environment adaptability evaluation technology for electronic equipment were discussed.
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图 1 均匀场96个方向辐照试验配置
Figure 1. Test configuration for 96 directions radiation in uniform electromagnetic field
图 2 GJB151B-2013适用于地面装备的RE102限值
Figure 2. RE102 limited values suitable for ground equipment in GJB151B-2013
图 3 某型超短波通信电台单频阻塞临界干扰场强变化曲线
Figure 3. Curve for critical block interference field for a certain type ultra-short wave radio
图 4 某型通信电台单频连续波与复合信号（单频+随机噪声）临界干扰试验结果
Figure 4. The test results of single frequency continuous wave and composite signal (single frequency+random noise) critical block interference for a certain type of communication radio
表 1 均匀场辐照条件下机箱内部电路的最大接收功率
Table 1. The maximum receiving power of the inner case circuit under the condition of uniform field radiation
frequency/GHz the results of the 6 radiation directions
with 2 polarization pattern /dBmthe results of the 96 radiation
directions/dBmdeviation/dB 2.6 −36.47 −32.26 4.21 2.7 −38.41 −32.83 5.58 2.8 −31.47 −27.26 4.21 2.9 −29.45 −27.96 1.49 3.0 −36.59 −36.59 0.00 3.1 −43.22 −36.67 6.55 3.2 −37.89 −35.63 2.26 3.3 −42.87 −41.13 1.74 3.4 −39.52 −38.52 1.00 3.5 −39.63 −39.21 0.42 3.6 −41.42 −35.61 5.81 3.7 −30.42 −29.51 0.91 3.8 −39.18 −36.17 3.01 3.9 −41.35 −38.64 2.71 4.0 −46.15 −44.82 1.33 
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