利用有限元方法模拟大地电磁正演响应，精度高。同时利用了MATLAB的并行处理，在频率域计算加快了计算速度。-We use the finite element method to simulate the geomagnetic forward response and the precision is high. At the same time using the MATLAB parallel processing, in the frequency domain calculation

有限元电磁计算。matlab编程。回波计算。散射特性计算。(matlab programing. electromagnetics compuing.echo computing.electromagnetics parameter settng.)

计算输电线路电场的大小，考察输电线路电磁环境是否满足限值。(The electric field of the transmission line is calculated, and whether the electromagnetic environment of the transmission line can meet the limit value is investigated.)