Observation or sighting system

An observation or aiming system for a self-propelled vehicle, comprising:

• a post pivoting about a bearing axis (Ag) relative to the vehicle, the post carrying a body for an optical block and a thermal camera which are mounted to pivot about an elevation axis (As) perpendicular to the bearing axis (Ag), wherein the body and the thermal camera are disposed symmetrically relative to the bearing axis (Ag);
• a radar channel including a radar transmitter unit mounted on the body and a radar detection unit mounted on the body close to the bearing axis (Ag);
• and
• concentration means situated in the body for concentrating radar waves in the millimeter wave range on the radar detection unit including a plurality of reflectors arranged in a particular relationship and an electronic scanning mechanism, and is associated with at least one lens;
• wherein the optical block, the thermal camera, and the radar channel are secured so as to always have the same orientation in elevation and in bearing, and thus the same observation direction.