Device for processing signals in an airborne radar system and radar system incorporating such a device

摘要

The device processes signals in an airborne radar system. It comprises a circuit 1 for transposing the signals to zero frequency and includes a circuit 2 for controlling the frequency of a transposition signal according to the motion imparted to the antenna. A circuit 3 creates a synthetic signal and a circuit 4 modulates the phase of the synthetic signal according to the motion of the moving antenna. A circuit 5 processes the transposed signals by correlation with the synthetic signal and delivers an improved signal. The circuits for transposition, for creating the synthetic signal and for processing the transposed signals form a filter suitable for radar signals. Application to airborne radar systems for map-making surveys. IMAGE