Device for radar image scanning

摘要

The invention relates to a device for radar scanning in an azimuthal angle range of 180@ and at any chosen elevation angles, in which the radiation energy from a radar transmitter-receiver is, on the one hand, fed to a first parabolic mirror via a first radiator, the radiation diagram of which mirror can be tilted azimuthally by a plane reflector rotating thereover, and, on the other hand, to a second parabolic mirror via a second radiator, the radiation diagram of which mirror is likewise azimuthally tiltable, by the side of the plane reflector which faces away from the first radiator and from the first parabolic mirror. In this case, radiation energy is supplied to the two radiators only when the radiation diagram of the parabolic mirror in each case irradiated by them lies within the azimuthal angle range to be scanned. For scanning in elevation, a tilting device is additionally fastened on the plane reflector, by means of which device the reflector can be tilted about an axis lying in the azimuthal plane.