| 摘要 |
<p>A plant for generation of information indicative of the depth and the orientation of an object positioned below the surface of the ground is adapted to use electromagnetic radiation emitted from and received by an antenna system associated with the plant. The plant has a transmitter and a receiver for generation of the electromagnetic radiation in cooperation with the antenna system mentioned and for reception of the electromagnetic radiation reflected by the object in cooperation with the antenna system, respectively. The antenna system comprises a plurality of individual antenna elements having substantially linear polarization, especially dipole antennas, which are positioned in relation to the geometric center of the antenna system with the various centers of the antenna element displaced in relation to the geometric sensor of the antenna system as the plant has means for rotation, either mechanically or electrically, of the antenna system and thus polarization of the electromagnetic field around or in relation to the geometric center of the antenna system.</p> |
