Radar system having a synthetic aperture on the basis of rotating antennae

US5017922A · kind A · utility

Assignee

• Messerschmitt Bolkow Blohm GmbH · DE

Inventors

• Helmut Klausing · Lingen (Ems), DE
• Horst Kaltschmidt · Neubiberg, DE

Key dates

• Filing date: Jun 7, 1990
• Grant date: May 21, 1991
• Expiry date: Jun 7, 2010

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S13/9082
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present invention relates to a radar system having a synthetic aperture on the basis of rotating antennae. In order to achieve real-time capacity with a high discrimination despite the high data flow, reference functions are determined by a geometry module and a circuit for dividing the strip illuminated by the antennae into a specific number of range intervals. As a result of the division of the overall analysis circuit into individual modules, a complete analysis of the incoming signals can take place despite the high data flow. By signals from additional kinematics sensors integrated into the tips of the rotor carrying the antennae, the reference functions are corrected for rotor movements which deviate from the ideal orbit.