Tem signal transformations to frequency domain for fast data inversion

The paper presents a new data inversion technique for the transient electromagnetic method (TEM) by converting measured signals into frequency domain. involves search such earth model parameters that there is consistency between synthetic and field data. We use an optimization method, where through numerical simulation at each iteration are determined in accordance with changing parameters. Numerical of TEM computationally expensive procedure, since time-domain signal usually calculated via inverse Fourier transform signal. Consequently, compared to signal, time needed calculate increases hundreds times. It proposed domain perform therein, which significantly reduces expenditures. Transition includes extraction primary from means special algorithm. This fact makes it possible employ transformation relatively small interval actually used instead infinite one.