Patent ID: 7675289

Claim:
A detection system, comprising: a primary wave EM-illuminator with vertically and horizontally polarized magnetic dipole antennas for transport along a surface road during operation and for providing primary EM-waves directed into the ground; an electro-magnetic (EM) gradiometer for synchronously detecting EM-waves scattered from underground objects illuminated by said primary EM-waves with vertically and horizontally polarized magnetic dipole antennas while being transported along said surface road during operation; wherein, if said horizontally polarized magnetic dipole antenna is selected for the primary wave EM-illuminator, said vertically polarized magnetic dipole antenna is selected by the EM gradiometer for detecting said EM-waves scattered from underground objects; and wherein, if said vertically polarized magnetic dipole antenna is selected for the primary wave EM-illuminator, said horizontally polarized magnetic dipole antenna is selected by the EM gradiometer for detecting said EM-waves scattered from underground objects.