Abstract: A satellite configured to operate radiofrequency communications from one or more antenna systems. The satellite further comprises a device dedicated to locating RF equipments comprising: a reception antenna comprising a plurality N of radiating elements configured to receive an RF signal, analogue means for frequency multiplexing the signals received on the N radiating elements, means for transmitting the multiplexed signals to a satellite station on the ground. A complete satellite system further comprising a satellite station and computation means configured to receive the multiplexed signals, demultiplex them and implement goniometry processing operations to determine the position of the RF equipment to be located, and to the associated locating method.

Abstract: A method for receiving a signal, includes a useful signal, interfering signals and noise, and for suppressing interfering signals in a multi-channel receiver, comprising steps of: (a) reception, frequency transposition and digital conversion of the received signal; (b) estimation of a correlation matrix of the received signals; (c) estimation of the variance of the noise; (d) initial estimation of the arrival directions of the useful and interfering signals; (e) initialization of the powers of the useful and interfering signals; (f) iterative computation: of the current directional vectors of the useful and interfering signal; of the powers of the useful and interfering signals; of the amplitude/phase errors of assumed directional vectors with respect to the current directional vectors; and of the arrival directions of the useful and interfering signals; (i) suppression of the interfering signals from the signal received in step (a).

Abstract: A method for receiving a signal, includes a useful signal, interfering signals and noise, and for suppressing interfering signals in a multi-channel receiver, comprising steps of: (a) reception, frequency transposition and digital conversion of the received signal; (b) estimation of a correlation matrix of the received signals; (c) estimation of the variance of the noise; (d) initial estimation of the arrival directions of the useful and interfering signals; (e) initialization of the powers of the useful and interfering signals; (f) iterative computation: of the current directional vectors of the useful and interfering signal; of the powers of the useful and interfering signals; of the amplitude/phase errors of assumed directional vectors with respect to the current directional vectors; and of the arrival directions of the useful and interfering signals; (i) suppression of the interfering signals from the signal received in step (a).