Rohde and Schwarz Gmbh & Co. Kg

Gerhard Hamberger

Matthias Beer

Steffen Neidhardt

Maximilian Bogner

Benedikt Simper

Benoit Derat

Marius Brinkmann

Frank Gumbmann

Hendrik Bartko

Mert Celik

Michael Freissl

Christian Carlowitz

Georg Körner

Christoph Birkenhauer

Andreas Vonloesecke

Patrick Stief

The present disclosure relates to a system for testing a radar device. The system comprises: a plurality of EM frontends which are arranged in a field of view of the radar device and which are configured to emit electromagnetic, EM, radiation towards the radar device; and a computing device which is configured to control an EM emission behavior of the EM frontends. The computing device comprises: a first interface configured to receive information on the spatial arrangement of the plurality of EM frontends; and a second interface configured to receive information on a scene to be simulated; wherein the computing device is further configured to individually control the EM frontends based on their respective location such that the plurality of EM frontends emit the EM radiation in an emission pattern that corresponds to the scene to be simulated.

System and method for testing a radar device

The present disclosure generally relates to a multistatic radar system and a method for a spatially resolved detection of an object under test. The multistatic radar system includes an at least two-dimensional multistatic array of antenna elements having an at least partially shared coverage area. At least one data processing circuit is coupled to the array. Analog and/or digital beamforming is performed thereby obtaining at least one image of the object under test at least partially being located within the shared coverage area. Processing the image obtained is used to resolve at least one scattering center of the object under test. A spatially resolved scattering center distribution is determined based on the image obtained.

Multistatic radar system and a method for a spatially resolved detection of an object under test

A LIDAR target simulator for testing a LIDAR device is described. The LIDAR target simulator includes a screen, a light impinging determination module, a control and/or analysis circuit and a response generation module. The light impinging determination module is configured to determine the location of impinging light on the screen and to forward information concerning the location determined to the control and/or analysis circuit. The control and/or analysis circuit is configured to process the information concerning the location determined by the light impinging determination module and to determine a response based on a target scenario applied. The control and/or analysis circuit is further configured to control the response generation module in accordance with the response determined. The response generation module is configured to generate a diffuse response signal to be received by the LIDAR device. Further, a LIDAR testing system and a method of testing a LIDAR device are described.

LIDAR target simulator, LIDAR testing system as well as method of testing a LIDAR device

The present application relates to a radar test system for testing a device-under-test (DUT) including an antenna array, wherein the antenna array includes: at least two RX antennas having a different antenna polarization and at least one TX antenna, or at least two TX antennas having a different antenna polarization and at least one RX antenna. The radar test system further includes a selection module configured to select one RX antenna and one TX antenna of the antenna array and to connect the selected RX antenna with the selected TX antenna, wherein the selected RX antenna is configured to receive a radar signal from the DUT, and wherein the selected TX antenna is configured to transmit a response signal to the DUT.

Radar test system

Embodiments of the present disclosure relate to a method of testing a radio frequency (RF) attenuation of a radar cover. A radiation detector is provided. The radiation detector is located with respect to a radar device and/or a radar cover at a distance. A reference value of radiated power is obtained. A radar signal radiated by the radar device is received by the radiation detector. A radiated power is determined based on the radar signal received. Information about the radio frequency attenuation of the radar cover is derived from the radiated power by using the reference value. Further, a radiation detector and a test system are described.

Method and radiation detector for automotive radar tests

A radar target simulator with no lower target distance limitation and continuous distance emulation is provided. Said radar target simulator comprises a receiving unit configured to receive a radar signal from a radar under test and to provide a corresponding receive signal, and a ramp slope estimating unit. In this context, the ramp slope estimating unit is configured to track the ramp slope of the radar under test on the basis of the receive signal.

Radar target simulator with continuous distance emulation and corresponding simulation method

An absorber device for absorbing signals is described. The absorber device has a housing with inner sides having an absorbing material. The housing is adaptable with regard to its geometry. The absorber device is portable. Moreover, a test system for testing radio frequency characteristics of a device under test is described.

Absorber device and test system

An imaging system for material characterization of a sample is provided. Said imaging system comprises at least two imaging arrays configured to form at least one imaging array pair. In this context, the imaging system is configured to perform at least one reflection measurement with the aid of at least one imaging array. Furthermore, the imaging system is configured to perform at least one transmission measurement with the aid of the at least one imaging array pair. In addition to this, the imaging system is configured to determine material characteristics of the sample on the basis of the at least one reflection measurement and/or the at least one transmission measurement.

Imaging system and method for material characterization of a sample

A radar target simulation system for simulating at least one radar target is disclosed. The radar target simulation system includes a processing circuit and an antenna array that is connected with the processing circuit. The antenna array is configured to receive a radar signal from a device under test, thereby generating an input signal. The processing circuit is configured to receive the input signal generated by the antenna array. The processing circuit is configured to simulate the at least one radar target based on the input signal. The processing circuit further is configured to simulate at least one additional event, wherein the at least one additional event is associated with at least one of the at least one radar target and an environment of the at least one radar target. The processing circuit is configured to generate an output signal for the antenna array based on the simulation of the at least one radar target and based on the simulation of the at least one additional event. Moreover, a radar target simulation method is described.

Radar target simulation system and radar target simulation method

An RCS reduction surface for reducing a radar cross section of an object is described. The RCS reduction surface comprises at least one absorber portion, wherein the absorber portion is configured to absorb radar waves. The RCS reduction surface further comprises at least one reflecting portion, wherein the reflecting portion is configured to reflect radar waves. A first plane being associated with a top surface of the absorber portion and a second plane being associated with a top surface of the reflecting portion are spaced from each other by a predefined distance. The predefined distance is configured such that radar waves with a predefined wavelength range that are reflected at the absorber portion and at the surface of the reflecting portion interfere destructively with each other. Further, an RCS reduction member and a radar test system are described.

RCS reduction surface, RCS reduction member, and radar test system

A test system for testing a radar sensor comprising a test chamber for encompassing a radar sensor to be tested. A test location is provided within the test chamber on which the radar sensor to be tested is placed for testing. Further, the test system comprises at least one antenna unit and at least one first radar target simulator connected to the antenna unit. The test system also comprises at least one antenna array different to the antenna unit and at least one second radar target simulator connected to the antenna array.

Test system for testing a radar sensor

A radar target simulator front end, configured to simulate at least one radar target for testing a radar device under test is provided. The radar target simulator front end comprises at least two antenna units, arranged along a first angle under investigation. The at least two antenna units are configured to be selectively activated and deactivated. Whereby each antenna unit of the at least two antenna units generates a simulated radar target along the first angle under investigation, when activated.

Radar target simulator front end and method for simulating

A computer-implemented method for determining the phase center of an antenna under test comprises the following steps: acquiring a transmitted near-field or far-field signal of the antenna under test, by rotational movement of a measuring antenna relative to the antenna under test, the rotation covering at least the angle between the z axis and the x axis of the antenna, the rotational movement covering a spherical measurement region, the acquisition being performed at different angles phi to the z axis and while rotating, relative to the measuring antenna, the antenna under test around its z axis, obtaining far-field phase data by applying a field transformation on the near-filed or far-filed signal obtained, determining the main beam peak location within the measurement region, and transforming the coordinate center of the far-field data based on the main beam peak location in order to determine the phase center.

Determining the phase center of an antenna

A measurement system for investigating the receive behavior of a device under test is provided. The measurement system comprises a test antenna, a test equipment connected to the test antenna, and a test position with respect to the device under test. In this context, the test equipment is configured to derive from geometrical information and radiation pattern data of the test antenna position based signal properties for transmitting via the test antenna.

Measurement system and corresponding method for investigating the receive behavior of a device under test

A method for correcting a radiation pattern is described by using a system having a device under test with at least one antenna and a measurement antenna. The device under test is located in a placement zone. A radiation pattern of the device under test is measured. A corrected measurement antenna pattern is determined to compensate for an offset of the at least one antenna of the device under test with respect to a coordinate center of the placement zone towards which the measurement antenna is orientated. The corrected measurement antenna pattern is applied on the measured radiation pattern of the device under test to obtain a corrected radiation pattern of the device under test. Furthermore, a system and a computer program for correcting a radiation pattern are described.

Growing community of inventors

Griesstatt, Germany

Gerhard Hamberger