Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array
Reexamination Certificate
2006-04-19
2008-10-07
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Directive
Including a steerable array
C342S169000, C342S376000, C342S377000
Reexamination Certificate
active
07432856
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.
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Eckardt Andreas
Hornbostel Achim
Konovaltsev Andriy
Schroth Arno
Steingass Alexander
Collard & Roe P.C.
Deutsches Zentrum für Luft- und Raumfahrt e.V.
Mull Fred H.
Tarcza Thomas H.
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