Signal simulation device

US7432856B1 · kind B1 · utility

Assignee

• DEUTSCHES ZENTRUM FÜR LUFT—UND RAUMFAHRT E.V. · DE

Inventors

• Achim Hornbostel · Herrsching am Ammersee, DE
• Arno Schroth · Puchheim, DE
• Andriy Konovaltsev · Gilching, DE
• Alexander Steingass · Gilching, DE
• Andreas Eckardt · Hersbruck, DE
• Holger Venus · Berlin, DE

Key dates

• Filing date: Apr 19, 2006
• Grant date: Oct 7, 2008
• Expiry date: Dec 28, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S19/23
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A signal simulation device for testing and developing radio receivers adapted to orientate antenna beams to different radio transmitters and to simultaneously suppress interference signals, comprises an antenna array, a signal generator generating reproducible digital signals in the complex baseband, and a digital matrix processor combined and synchronized with the signal generator. The processor has input signals generated by the signal generator and has output signals that form received signals of the antenna array. The input signals of the matrix processor are phase shifted according to a direction of incidence and to relative positions of the elements within the antenna array of the radio receiver, and are combined and supplied to outputs of the matrix processor. Amplitude and phase shift are simulated by weighting of the input signals from the signal generator, the weighting coefficients being calculated on a control computer and input into the matrix processor via an interface.