NUMERICAL CALCULATION OF PLANE GROUND INFLUENCE ON INDUCED CURRENT ON CABLE BY EMP
大地对电磁脉中感应的电缆电流影响的数值计算

The induced pulse current by EMP on cable that is connected to electric system threatens seriously the system. In this paper, the influence of conductivity and permittivity of plane ground on this current is calculated by FDTD method. The relationship between induced current and cable position above the earth is obtained, and the results are compared with the free-space case.