Method for collecting and processing tensor artificial-source electromagnetic signal data and device thereof

A device for collecting and processing tensor artificial-source electromagnetic signal data, comprising:

• an electric field polarization direction determining unit used for determining the polarization direction of the electric field in the measuring area, wherein the electromagnetic field sensors are arranged according to the determined polarization direction of the electric field in the measuring area,
• an electromagnetic receiver used for respectively collecting artificial-source electromagnetic field signals and natural-field-source electromagnetic field signals, a signal processing unit used for respectively Fourier-transforming the collected electromagnetic field signals, thereby obtaining electromagnetic field values Exs, Eys, Hxs, and Hys corresponding to the artificial source, and the collected electromagnetic field signals Exi, Eyi, Hxi and Hyi corresponding to n groups of natural sources, wherein i=1:n,
• an underground tensor impedance calculating unit used for calculating to obtain the underground tensor impedances Zxx, Zxy, Zyx and Zyy according to the electromagnetic field values Exs, Eys, Hxs, and Hys corresponding to the artificial source and the electromagnetic field signals Exi, Eyi, Hxi and Hyi corresponding to n groups of natural sources that are obtained based on the least square method, and
• an underground tensor impedance rotating unit used for rotating the underground tensor impedances of all measuring points to the same direction, thereby completing the three-dimensional analysis and inversion of the whole measuring area.