Abstract：In order to realize accurate interpretation of TEM sounding data,theideaofpseudo-seismic section transformation for TEM data produced by loop-source had been presented in the paper. The mathematical model was given in a condition of horizontal layered medium,the transformmethod and processing procedure have been put forward：the secondary inducedvoltage datameasured in field,after Fourier transform,was used to compute the wave-impedance by using linear numeric filtering in frequency domain;then after inverse Fourier transform,the reflection coefficient sequence qm of TEM field has been computed by linear programming in time-domain,and finally the pseudo-seismic section has been plotted by parameter qm. The results showed that the method is effective.
