Abstract: A method for using ground-penetrating radar to obtain subsurface imaging. The radar comprises resources for transmitting, receiving and processing signals. In one method embodiment, signals are transmitted from a fixed point relative to the subsurface and with the aid of at least two electrical antennae. Signals reflected or backscattered by reflectors or diffusers of the said subsurface are received by way of the electrical antennae and by way of three magnetic antennae. Finally, the reflected or backscattered signals are processed using an algorithm to obtain the imaging of the said subsurface.

Abstract: A method for obtaining subsurface imaging, using ground-penetrating radar comprising means of transmitting, receiving and processing signals, characterized in that:

Abstract: High-voltage device with casing, protected against mobile electrical charges, and satellite equipped with the device. The device comprises a casing containing at least one high-voltage circuit and having at least one opening and means for opposing (a) the ingress into the casing of electrical charges of opposite sign to that of the high voltage, and (b) the existence outside the casing of high potentials due to the high voltage.