NEW ATTEMPT AT AUTOMATIC DATA-PROCESSING IN MAGNETOTELLURICS

Considering the magnetotelluric (MT) signal in its physical reality as a stochastic process, we present here a new methodology for the search and analysis of the wave packets which are most compatible with theoretical calculation requirements. In adapting the length of the physical data blocks to a small number of oscillations of the signal, we are able to identify those data ensembles which show particularly high rotated coherence values (higher than 0.9). An example of such calculations is supplied by means of the analysis of an MT sounding which demonstrates the validity of this procedure. © 1979.