RADIO-LOCALISATION PROBING METHOD AND DIFFERENTIAL RADAR DEVICE FOR REALISING THE SAME

摘要

The present invention relates to geophysical prospecting methods, more precisely to underground radio-localisation, and may be used for discovering and determining irregularities fields in geological formation massifs. This invention essentially relates to a method which comprises receiving an energy signal using two receivers while subtracting from one received signal another time-scale converted and previously processed received signal, and further determining the difference between said signals. The device of the present invention includes a differential localisation unit which comprises a transmitter, receivers, a phase inverter as well as an adder. The outputs of the receivers are connected to the input of the adder, wherein the output of one receiver is connected to the input of the adder through the phase inverter. The reception antennas are symmetrically arranged relative to the transmission antenna. This invention can be used for obtaining an improved protection against interference, a high precision as well as a high efficiency in the fields of geological cartography, civil engineering and archaeological research amongst other.