Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Guenter Rohmer

Stefan Koehler

Alfonso Carrera

Josef Bernhard

Gerd Kilian

Johannes Wechsler

Heinz Gerhaeuser

Jakob Kneissl

Raimund Meyer

Frank Obernosterer

Michael Schlicht

Thomas Von Der Gruen

Ingmar Bretz

Alexander Ruegamer

Maximilian Roth

Frank Nachtrab

Manuel Stahl

Dominik Soller

Stefan Ereth

Embodiments provide transfer methods. The method includes a step of transferring data of a first class from a data transmitter to a data receiver, wherein the data of the first class is transferred divided onto a first plurality of sub-data packets using a first hopping pattern. Furthermore, the method includes a step of transferring data of a second class from the data transmitter or a different data transmitter to the data receiver, wherein the data of the second class is transferred divided onto a second plurality of sub-data packets using a second hopping pattern, wherein transmission pauses between sub-data packets transferred according to the first hopping pattern are smaller than transmission pauses between sub-data packets transferred according to the second hopping pattern.

Data transmitter and data receiver with low latency for the telegram splitting transfer method

Embodiments provide a satellite navigation receiver. The satellite navigation receiver has a receiver unit and a transmitter or a controller. The receiver unit is configured to receive and process a satellite navigation signal from a satellite navigation system at the certain time, to obtain a received signal, the received signal having a first component in a digital form, wherein the first component in the digital form is encrypted. The transmitter is configured to transmit the first component in the digital form together with an identification of a user of the satellite navigation receiver at the certain time. The controller is configured to store the first component in the digital form on a non-volatile storage medium in association with other data representing an information from a location, at which the satellite navigation receiver was located at the certain time.

Concept for data authentication and secured localization based on a satellite navigation signal

A signal processor for processing a receiving signal having a first usable frequency band and a second usable frequency band includes a first mixer for mixing the receiving signal with a first local oscillator signal, wherein a frequency of the first local oscillator signal is asymmetrical between the first usable frequency band and the second usable frequency band. The first mixer is implemented to obtain an in-phase signal and a quadrature signal, having a first signal portion representing a mixed image of the first usable frequency band, and having a second signal portion representing a mixed image of the second usable frequency band. The signal processor comprises a second mixer) for mixing the in-phase signal and the quadrature signal by using the second local oscillator signal. A frequency of the second local oscillator signal is selected such that the mixed image of the first usable frequency band and the mixed image of the second usable frequency band are at least partly image bands of each other with regard to the second local oscillator signal. The second mixer is implemented to separately provide information content of the first usable frequency band and the second usable frequency band at its output, for obtaining a first output signal, which substantially comprises information content of the first usable frequency band, and for obtaining a second output signal which substantially comprises information content of the second usable frequency band.

Signal processor and method for processing a receiving signal

A receiver for receiving a first usable frequency band and a second usable frequency band includes a band-pass filter device for filtering one or several receiving signals, a mixer device for converting the combination signal or the first band-pass filter signal and the second band-pass filter signal with a local oscillator signal, for obtaining a first intermediate frequency signal and a second intermediate frequency signal, and an intermediate frequency filter device for filtering the first intermediate frequency signal and the second intermediate frequency signal. Further, the receiver includes an analog/digital converter device for analog/digital converting the first filtered intermediate frequency signal and the second filtered intermediate frequency signal by using a single sampling frequency for obtaining a first digitized intermediate frequency signal and a second digitized intermediate frequency signal.

Receiver and method for receiving a first usable frequency band and a second usable frequency band

A system for determining the position of an object, comprising a reference transmitter device () disposed in a fixed position, the reference transmitter device () having a reference time supplying means for supplying a reference time signal that indicates a reference time, at least two transmitter/receiver devices () disposed in fixed positions with respect to each other and to the reference transmitter device (), each transmitter/receiver device () having a time supplying means for supplying a time signal indicating a time, a receiver means for receiving the reference time signal from the reference transmitter device () and a synchronization means for processing the time signal and the reference time signal, as well as a position determining device () on the object for determining the position of the object.

System for determining the position of an object

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Erlangen, Germany

Guenter Rohmer