Passive radar with analogue cancellation of the static component

A passive radar comprising:

• a reception antenna configured to receive a signal transmitted by a non-cooperative transmitter, the received signal comprising a static contribution related to propagation of the transmitted signal through a multi-path propagation channel and a dynamic contribution related to propagation of echoes of the transmitted signal coming from a moving target,
• a reception chain that includes a digital-analogue converter configured to output a digitised signal,
• a moving target detection unit configured to detect the moving target by making use of the digitised signal,
• wherein the passive radar further comprises:
• a digitised signal processing unit configured to determine an estimation of the static contribution during a calibration phase of the passive radar,
• a transmission chain configured to output an analogue signal representative of the estimation of the static contribution, and
• a coupler configured to supply to the reception chain:
• the received signal during the calibration phase of the passive radar,
• the received signal from which the analogue signal representative of the estimation of the static contribution is subtracted during a usage phase of the passive radar in which the passive radar is used to detect a moving target.