- empymod.transform.fourier_qwe(fEM, time, freq, ftarg)¶
Fourier Transform using Quadrature-With-Extrapolation.
The function is called from one of the modelling routines in
empymod.model. Consult these modelling routines for a description of the input and output parameters.
This function is based on get_CSEM1D_TD_QWE.m from the source code distributed with [Key12].
fourier_qwechecks how steep the decay of the frequency-domain result is, and calls QUAD for the very steep interval, for which QWE is not suited.
Returns time-domain EM response of fEM for given time.
If true, QWE/QUAD converged. If not, ftarg might have to be adjusted.