Method and device for calibrating an array antenna

US8674874B2 · kind B2 · utility

Assignee

• ASTRIUM GMBH · DE

Inventors

• Francis Soualle · Munich, DE
• Helmut Wolf · Holzkirchen, DE

Key dates

• Filing date: Sep 17, 2008
• Grant date: Mar 18, 2014
• Expiry date: Dec 25, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/02
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for calibrating an array antenna having a plurality of branches includes generating a test signal using a pseudo-random sequence assigned to one of the plurality of branches for each of the plurality of branches; adding the test signals to a useful signal of the antenna so as to form a summed signal emitted via the array antenna; receiving the summed signal with a receiver antenna; correlating the received summed signal with a replica of the pseudo-random sequence so as to produce a correlation result; estimating a characteristic of one of the plurality of branches by processing the correlation result; and calibrating the antenna based on the estimated characteristic.