HEMP radiation effect test and electromagnetic damage assessment method of a certain radio equipment
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摘要: 为检验电台类装备在高空核爆电磁脉冲（high-altitude electromagnetic pulse, HEMP）环境下的生存能力，降低系统电磁脉冲易损性评估中的不确定度，设计了系统级HEMP辐照试验方案及易损性试验评估流程，建立了基于故障树模型的电台电磁损伤评估算法. 以欧讯SG-7200型超短波电台的电磁易损性评估为例，应用电磁损伤评估算法开展威胁级辐照试验. 试验结果表明：电台在50 kV/m的辐照试验中发生跳频现象，通信故障；在故障树模型中，根据多次试验数据得到该型电台在50 kV/m的威胁级辐照试验中系统失效概率为78.83%.
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关键词:
- 高空核爆电磁脉冲(HEMP) /
- 电磁损伤 /
- 故障树 /
- 易损性评估
Abstract: To test the survivability of radio equipment in the environment of high-altitude electromagnetic pulse (HEMP) and reduce the uncertainty of system electromagnetic pulse vulnerability assessment, the system level nuclear electromagnetic pulse irradiation test scheme and vulnerability test assessment process are designed, and the radio electromagnetic damage assessment algorithm based on fault tree model is established. Taking the electromagnetic vulnerability assessment of SG-7200 ultra short wave radio as an example, the threat level radiation test is carried out by using the electromagnetic damage assessment algorithm in this paper. The test results show that the radio frequency hopping phenomenon and communication failure occur in the 50 kV/m radiation test; in the fault tree model, according to the test data, the failure probability of the system is 78.83% in the 50 kV/m threat level radiation test. -
图 2 系统级EMP易损性试验评估流程图
Fig. 2 Flowchart of system-level electromagnetic pulse vulnerability test assessment
图 6 测试物在辐照场内的试验布局及坐标系定义图
Fig. 6 Test layout and coordinate system definition diagram of the test object in the irradiation field
图 11 未加电状态下电台天线辐照试验电场与耦合电流波形
Fig. 11 Waveform of electric field and coupling current in radio antenna irradiation test with power off
图 12 未加电状态下电台天线耦合电流随电场变化规律
Fig. 12 Variation of radio antenna coupling current with electric field with power off
图 13 未加电状态下电台话筒线辐照试验电场与耦合电流波形
Fig. 13 Waveform of electric field and coupling current in radio microphone line irradiation test with power off
图 14 未加电状态下电台话筒线耦合电流随电场变化规律
Fig. 14 Waveform of electric field and coupling current in radio microphone line irradiation test with power off
图 15 未加电状态下电台电源线辐照试验电场与耦合电流波形
Fig. 15 Waveform of electric field and coupling current in radio power line irradiation test with power off
图 16 未加电状态下电台电源线耦合电流随电场变化规律
Fig. 16 Variation of radio power line coupling current with electric field with power off
图 17 加电状态下天线辐照试验电场与耦合电流波形
Fig. 17 Waveforms of electric field and coupling current in antenna irradiation test with power on
图 18 电台在辐照场50 kV/m时的效应现象
Fig. 18 Effect phenomenon of radio equipment when the irradiation field is 50 kV/m
表 1 不加电情况下HEMP试验次数
Tab. 1 Times of HEMP test with power off
试验等级/
( kV·m−1)缆线1耦合电流 缆线2耦合电流 缆线3耦合电流 X方向 Y方向 Z方向 X方向 Y方向 Z方向 X方向 Y方向 Z方向 10 1次 1次 1次 1次 1次 1次 1次 1次 1次 20 1次 1次 1次 1次 1次 1次 1次 1次 1次 30 1次 1次 1次 1次 1次 1次 1次 1次 1次 40 1次 1次 1次 1次 1次 1次 1次 1次 1次 50 1次 1次 1次 1次 1次 1次 1次 1次 1次 60 1次 1次 1次 1次 1次 1次 1次 1次 1次 
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表 2 加电状态效应试验次数
Tab. 2 Test times of power on state effect
试验等级/( kV·m−1) 试验次数 10 1次 20 1次 30 1次 40 1次 50 1次
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表 3 未加电状态下电台天线辐照试验数据
Tab. 3 Radiation test data of radio antenna with power off
试验电场/(kV·m−1) 耦合电流/A 10.3 12.6 17.0 21.3 32.3 48.3 37.8 59.5 49.2 86.3 65.9 102.3
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表 4 未加电状态下电台话筒线辐照试验数据
Tab. 4 Radiation test data of radio microphone line irradiation test with power off
试验电场/(kV·m−1) 耦合电流/A 10.3 11.7 17.2 19.5 33.0 39.3 43.4 53.7 54.3 67.2 70.8 88.2
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表 5 未加电状态下电台电源线辐照试验数据
Tab. 5 Radiation test data of radio power line with power off
试验电场/(kV·m−1) 耦合电流/A 9.5 19.0 19.3 37.2 33.2 71.0 45.8 96.1 52.2 110.7 68.1 136.2
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表 6 加电状态下电台辐照试验效应
Tab. 6 Radiation test station with power on
试验电场/(kV·m−1) 效应现象 6 电台一切功能正常 15 电台一切功能正常 32 电台一切功能正常 50 电台通信故障，其中被试电台跳频
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