SYSTEMS AND METHODS FOR MULTIPLE BANDWIDTH ELECTROMAGNETIC GEOPHYSICAL EXPLORATION

摘要

A system and method for electromagnetic geophysical exploration is provided. The system includes a first transmitter configured to transmit a first waveform in a first spectrum and a first receiver configured to sense signals in the first spectrum. The system also includes a second transmitter configured to transmit a second waveform in a second spectrum, and a second receiver configured to sense signals in the second spectrum and minimum-coupled to the second transmitter. The second spectrum has a frequency higher than a frequency of the first spectrum. The system further includes a control portion configured to control the first transmitter to transmit the first waveform, and control the second transmitter to transmit the second waveform after a specified time delay. The control portion is configured to receive signals sensed by the first receiver in the first spectrum, and receive signals sensed by the second receiver in the second spectrum.