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

Airbus Ds Gmbh

Alexander Ruegamer

Jan Wendel

Guenter Rohmer

Ivana Lukcin

Manuel Stahl

Santiago Urquijo Tardio

A method for determining a position of a receiver via use of encrypted signals of a public regulated service. The method comprises transmitting PRN code chips to the receiver by an assistance server. The method further comprises storing the transmitted PRN code chips to be used before a designated time interval by the receiver. The method further comprises receiving the encrypted signals during the designated time interval by the receiver from satellites in line-of-sight to the receiver. The method further comprises determining the position of the receiver via use of the encrypted signals and the stored PRN code chips by the receiver.

Technique for position calculation of a receiver via use of encrypted signals of a public regulated service

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 system for determining an actual interferer transmitting an interfering signal including first frequency portions of the interfering signal in a predetermined frequency band of a useful signal is provided. The system includes a signal evaluator configured to determine for each possible interferer of the plurality of possible interferers coefficient information of the possible interferer based on representation information of the possible interferer and based on processing information, such that the coefficient information of the possible interferer and the representation information of the possible interferer together indicate the preprocessed signal, wherein the processing information and the preprocessed signal together indicate the compressed signal.

System and method for determining an interferer transmitting an interfering signal

A multi-frequency band receiver has a first path configured to process first and second frequency bands, and a second path configured to process a third frequency band, the first and second frequency bands having a smaller distance than the first and third frequency bands, and having a smaller distance than the second and third frequency bands. In addition, the multi-frequency band receiver has an oscillator stage for providing a local oscillator signal having a frequency that is between the center frequencies of the first and second frequency bands, the first path having a mixer that may be supplied with the local oscillator signal, and the second path having a mixer that may also be supplied with the local oscillator signal. In addition, the multi-frequency band receiver has a baseband stage for processing output signals of the first and second paths so as to obtain a receive signal.

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Nuremberg, Germany

Alexander Ruegamer