CAJ | 학술논문

为解决电磁脉冲（EMP）辐射敏感度试验中构建大范围强场的困难，在天线和线缆为干扰耦合主要途径的情况下，提出差模电流注入等效强电磁脉冲场辐射的试验方法，分析时域内辐射场强与等效注入电压幅值间的关系，研究等效注入电压波形特征的获取方法，并仿真验证试验方法的可行性。结果表明：在辅助设备响应为线性的条件下，场强与等效注入电压的幅值在时域内满足线性外推关系；当辅助设备端口匹配时，辐射时耦合装置监测端电压与等效注入电压的波形仅在幅值上存在倍数关系，其他波形特征相同；在仿真试验构成的理想条件下，高场强辐射与等效注入试验所得受试设备响应相等。
위해결전자맥충（EMP）복사민감도시험중구건대범위강장적곤난，재천선화선람위간우우합주요도경적정황하，제출차모전류주입등효강전자맥충장복사적시험방법，분석시역내복사장강여등효주입전압폭치간적관계，연구등효주입전압파형특정적획취방법，병방진험증시험방법적가행성。결과표명：재보조설비향응위선성적조건하，장강여등효주입전압적폭치재시역내만족선성외추관계；당보조설비단구필배시，복사시우합장치감측단전압여등효주입전압적파형부재폭치상존재배수관계，기타파형특정상동；재방진시험구성적이상조건하，고장강복사여등효주입시험소득수시설비향응상등。
Since it is too complex to simulate the high-level electromagnetic pulse (EMP) in a large dimen?sion, this paper proposes a differential-mode current injection method equivalent to high-level EMP radia?tion. The method is effective when the antenna and the cable are the maln coupling routes. The relationship between the field strength and the equivalent injected voltage amplitude is analyzed in the time domaln, where the procedure to obtaln the waveform of the equivalent injected voltage is also presented. The feasi?bility of the method is verified through simulation, and the results show that the relationship between the field strength and the equivalent injected voltage amplitude is linear when the auxiliary equipment re?sponse is linear. Meanwhile, the waveform characteristics of the monitoring voltage for radiation and the equivalent injected voltage are the same, except for the amplitude. Under the ideal condition, the responses of the equipment under test in the high-level field radiation agrees well with that in the equivalent injec?tion experiment.