Avl List Gmbh

Nxp B.v.

Andreas Gruber

Helmut Schreiber

Michael Ernst Gadringer

Michael Vorderderfler

Stefan Tertinek

Wolfgang Küchler

David Veit

There is described a radar system () and a corresponding method, the radar system () comprising i) a control unit (), configured for generating a code (C) comprising a sequence of code symbols (), wherein generating the code (C) comprises randomly selecting a plurality of code symbols () from a code symbol pool () comprising a plurality of code symbols (), ii) a transmitter (), configured for generating a signal (S) from the code (C), and further configured for transmitting the signal (S), iii) a receiver (), configured for receiving an echo (E) of the signal (S), and iii) a correlator (), configured for correlating each code symbol of the code (C') of the received echo (E) of the signal (S) to a corresponding symbol template (R) associated with the correlator (); wherein the radar system () is further configured for synchronizing the symbol template (R) to the code (C) of the signal (S). There is further described a method of using a sequence of randomly selected code symbols () in a radar application, in particular an UWB-based radar application, to prevent replay attacks.

Radar system and a radar method for replay resistant radar operations

systems and methods include a transmitter with a control unit that is configured to generate a code, including data identifying a plurality of regions and a transmitter-specific cyclic shift scheme. The cyclic shift scheme results in a re-arrangement of the regions (using a change of time offset) that is different (transmitter-specific) for each of the transmitters. The transmitter generates a signal based on the code and transmits the signal via an antenna. The radar system includes a receiver configured to receive an echo of the signal via a second antenna that is reflected from a target and identifies the transmitter from the echo based on the transmitter-specific cyclic shift scheme.

Radar system, a radar arrangement, and a radar method for concurrent radar operations

A radar target emulator with a superimposition apparatus, having a first input provided to receive a first signal, a second input provided to receive a second signal, a first attenuation device that is connected to the first input in signal-carrying fashion and configured to attenuate the first signal, in particular to a predetermined extent, and to provide a first attenuated signal, a second attenuation device that is connected to the second input in signal-carrying fashion and configured to attenuate the second signal, in particular to a predetermined extent, and to provide a second attenuated signal, an addition device that is configured to add the first attenuated signal and the second attenuated signal and to output a corresponding output signal.

Radar target emulator having a superimposition apparatus and method for superimposing signals

The present invention relates to an apparatus and a method for converting a radar signal for further signal processing in a test bench with a radar target emulator as well as a test bench having such an apparatus. A divider assembly preferably comprises a divider device configured to reduce a frequency and a bandwidth of the radar signal by a first factor for the further signal processing. A multiplier assembly preferably comprises a multiplier device configured to increase a frequency and a bandwidth of the radar signal by the first factor subsequent the further signal processing.

Device and method for converting a radar signal, and test bench

A switching device for a radar target emulator is provided comprising: at least one first switch arrangement and a second switch arrangement, each having a branching device designed to receive a first input signal and diverge it into a branch signal and a first output signal, a switch adapted to transmit the branch signal in a first switching state within the switch arrangement and to not transmit in a second switching state, and adding means designed to emit the signal transmitted in the first switching state of the switch, at least as components of a second output signal. The first switching arrangement and the second switching arrangement are interconnected in such a way that a first input signal of the second switching arrangement comprises a first output signal of the first switching arrangement, or a second input signal of the second switching arrangement comprises a second output of the first switching arrangement.

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Graz, Austria

Andreas Gruber