the TEM field is obtained by transforing the frequency-domain electromagetic field into the time-domain result for the same geologic model and the same array and calculated by the linear digital filtering method presented by Anderson et al.

• 其正演计算是将频率域中相同模型、相同装置条件下的谐变场结果转换到时间域来。 计算方法上采用了安德森等人提出的线性数字滤波法。