Method for direction finding and direction finder

US10830861B2 · kind B2 · utility

Assignee

• Rohde & Schwarz GmbH & Co. KG · DE

Inventors

• Moritz Stein · Poing, DE
• Christoph Meyer · Herzogenrath, DE

Key dates

• Filing date: Dec 13, 2017
• Grant date: Nov 10, 2020
• Expiry date: Nov 18, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S3/14
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for direction finding is described wherein incoming signals are scanned and analyzed. The bearing value and its quality of the incoming signals are determined by using a direction finding method. A covariance matrix is generated from the incoming signals by using a multiple-wave detector unit. The dimension of the covariance matrix is reduced in order to obtain a reduced covariance matrix. The eigenvalues of the reduced covariance matrix are determined. Then, it is determined whether more than one signal, a single signal or no signal is detected by using the eigenvalues and the quality determined by using the direction finding method. Further, a direction finder is described.