Patent ID: 7930103
Filing Date: 2011-04-19
Classification: G01V

Abstract:
1. An above-ground system for evaluating a subsurface, comprising: a ground penetrating radar (GPR) system configured to produce GPR measurements about subsurface features to depths of up to at least 8 feet for a survey area; an electromagnetic sensor (EM) system configured to produce EM measurements about subsurface features to depths of up to at least 8 feet for the survey area; at least one additional sensor configured for subsurface sensing in a manner differing from the GPR and EM systems, the at least one additional sensor comprising a seismic sensor, and radar waves and seismic waves associated with the GPR system and the seismic sensor, respectively, are of about the same wavelength; a positioning system associated with the GPR system and EM system, the positioning system configured to produce positioning measurements indicative of GPR and EM system position within the survey area; and a processor configured to receive the respective measurements from the GPR system, EM system, and positioning system, the processor configured to execute program instructions for associating the GPR and EM measurements and data from the at least one additional sensor with respective positioning measurements and producing data indicative of presence and location of the subsurface features using the position-associated GPR and EM measurements and the at least one additional sensor data.