为了解源区核电磁脉冲SREMP对埋地导体的耦合规律,运用数字滤波与FDTD混合方法,在时城内计算了在10 kt当量核武器爆炸产生的SREMP作用下埋地导体耦合的感应电压和感应电流,初步分析了感应电压和感应电流随埋地深度和传输线长度变化的规律.结果表明,埋地深度相同时,感应电流和感应电压峰值随传输线的长度增加而增大,上升时间变长；传输线长度相同时,感应电流和感应电压峰值随埋地深度的增加而减小,上升时间变长.%To study source region electromagnetic pulse (SREMP) coulping to buried conductors, digital filtering (DF) technique was combined with the finite different time domain (FDTD) method to calculate the induced voltage and induced current of buried conductor in the time-domain under the function of source region electromagnetic pulse (SREMP) produced by the 10kt nuclear weapon explosion. The regulation of the induced voltage and the current varied with the length of the transmission line and the depth of this line was analyzed tentatively. The result shows that under the same buried depth the peak values of the induced voltage and the current turn higher and the rise time longer along with the increase of the TL's length,and that under the same length of TL, the peak of the induced voltage and the current turn lower and the rise time longer along with the increase of the buried depth.
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