超宽谱电磁脉冲对无线电引信的耦合及防护加固
Coupling mechanism between radio fuzes and ultra band spectra electromagnetic pulse and enhancement of radio fuzes
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摘要: 通过利用超宽谱电磁脉冲(UWS-EMP)源对5种无线电引信进行了辐照，分析了超宽谱电磁脉冲与无线电引信的耦合模式和作用机理。分析得出：超宽谱电磁脉冲主要是通过后门耦合到引信电源模块，引起电源波动，使晶闸管意外导通，导致引信意外发火。根据耦合模式和作用机理对引信进行了防护加固，并对防护加固后的引信进行了辐照和仿真。辐照实验和仿真结果证明：防护加固措施大大提高了引信抗超宽谱电磁脉冲的能力，加固后的引信执行电路抗UWS-EMP干扰的场强从58 kV·m-1提高到130 kV·m-1，而引信的防护加固措施对引信的效能没有影响。Abstract: Five kinds of radio fuzes are irradiated by UWS-EMP, and coupling pattern and working mechanism between radio fuzes and the energy of UWS-EMP are analysed based on irradiation experiments. Analysis results show that the energy of UWS-EMP couples to fuzes via the power module of fuzes, causes silicon control rectifier conduction, and results in fusing. The radio fuzes are enhanced based on the coupling pattern and working mechanism. The improved fuzes are irradiated and simulated. The results indicate that the enhancement has greatly improved the ability of the radio fuzes against UWS-EMP. The enhancement doesn’t influence the efficiency of the fuzes.
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Key words:
- uws-emp /
- radio fuze /
- irradiation /
- amelioration /
- coupling
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