Thomson-csf

Gabriel Marchalot

Myriam Chabah

A system and method for scanning through a &deg; azimuth by a surveillance radar antenna. The method includes driving at slow speed the radar antenna including two electronic scanning antennas installed back to back, simultaneously controlling the electronic aiming of each of the two electronic scanning antenna, switching the microwave signal sent alternatively between the two electronic scanning antennas and, before each rotation of the radar beam, initializing the electronic aiming of each of the two elementary electronic scanning antenna at a determined angle &thgr; . The radar system includes the radar antenna with the two elementary electronic scanning antennas and an aiming computer.

Method of exploration in azimuth for a radar, and radar implementing the method

A method for the detection of a target by a radar in the presence of noise, the detection being performed on M antenna rotations, comprises at least: a first step for the estimation of the Doppler frequency ({circumflex over (f)}) of the target; a detection step, the target being detected if an associated variable Z is greater than or equal to a predetermined threshold S, the variable Z being defined according to the following relationship:

Growing community of inventors

Brest, France

Gabriel Marchalot