METHOD AND DEVICE FOR REJECTING A PERTUBATOR SIGNAL, IN PARTICULAR FOR REJECTING AN ELECTRONIC COUNTERMEASURE SIGNAL FOR RADIOCOMMUNICATION INTERFERENCE

摘要

P This device (1) is connected to two antennas (A1, A2) of an antenna system and outputs a signal (e2 (t)) essentially comprising the wanted signal component, the wanted signal and the interfering signal being, between them, statistically independent and the useful signal being a signal emitted intermittently during active phases preceded by inactive phases. BR/ It comprises: means (32) for weighting, in phase and in amplitude, respective signals picked up simultaneously by the two antennas so as to conform the overall radiation pattern of this antenna system so that it has an attenuation in the direction of the source from which the disturbing signal originates; a first chain (33) servo weighting means for controlling them in power reversal; a second chain (38) for controlling the weighting means, making it possible to control the latter in source separation; means for determining the inactive and active phases of the transmitted useful signal; and mode switching means (41-48), controlled by these determining means so as to slave the power inversion weighting means during the determination of an inactive phase, and then to slave them into source separation when detection of a subsequent active phase. / P