Device for processing a signal received by a receiver disrupted by a transmitter, where said transmitters and receiver are co-located, where said device is characterised by the fact that it includes: • a first coupler configured to take a first reference signal from an interfering signal transmitted by the transmitter; • an analogue circuit to process the first reference signal configured to deliver a modified reference signal, where the analogue processing circuit is configured to modify at least one of the parameters, including: the amplitude and/or phase and/or time lag of the first reference signal, where the modified reference signal is able to compensate for the interfering signal transmitted by the transmitter present in the signal received by the receiver; • a second coupler configured to combine the modified reference signal with the signal received by an antenna of the receiver, delivering the combined signal to a second analogue-to-digital conversion module; • a first analogue-to-digital conversion module configured to digitise the first reference signal in order to deliver to a signal-processing digital device a first digital reference signal (Ref1n), said signal-processing digital device being comprised in the device for processing a signal received; • the second analogue-to-digital conversion module being configures to digitise the combined signal in order to deliver a digital combined signal (R2n) to the digital signal-processing device, where the signal-processing device combines the digital combined signal (R2n) and at least the first digital reference signal (Ref1n) in order to reduce the intensity of the interfering signal present in the digital combined signal (R2n), where said signal-processing device delivers a resulting digital signal (Run) to a data-processing module of the receiver device. • a first coupler configured to take a first reference signal from an interfering signal transmitted by the transmitter; • an analogue circuit to process the first reference signal configured to deliver a modified reference signal, where the analogue processing circuit is configured to modify at least one of the parameters, including: the amplitude and/or phase and/or time lag of the first reference signal, where the modified reference signal is able to compensate for the interfering signal transmitted by the transmitter present in the signal received by the receiver; • a second coupler configured to combine the modified reference signal with the signal received by an antenna of the receiver, delivering the combined signal to a second analogue-to-digital conversion module; • a first analogue-to-digital conversion module configured to digitise the first reference signal in order to deliver to a signal-processing digital device a first digital reference signal (Ref1n), said signal-processing digital device being comprised in the device for processing a signal received; • the second analogue-to-digital conversion module being configures to digitise the combined signal in order to deliver a digital combined signal (R2n) to the digital signal-processing device, where the signal-processing device combines the digital combined signal (R2n) and at least the first digital reference signal (Ref1n) in order to reduce the intensity of the interfering signal present in the digital combined signal (R2n), where said signal-processing device delivers a resulting digital signal (Run) to a data-processing module of the receiver device.