THE GEOELECTRIC PROSPECTING WITH DUAL-FREQUENCY COMBINATORIAL ELECTROMAGNETIC WAVE IN NEAR-FIELD ZONE OF CURRENT LOOP

The dual-frequency combinatorial electromagnetic wave is one kind of electromagnetic wave with two different frequencies but the same amplitue. According to the distribution pattern of field, the prospection of geoelectric anomalies in near-field zone, the acquisiton of geoelectric parameters and the calculation method of field with the dual-frequency combinatorial electromagnetic wave are investigated,and a new path for the application of combinatorial electromagnetic wave in the engineering is found out.