A sensor calibration system for calibrating a sensor system associated with a device under test and methods for making and using same. The sensor calibration system can include a turntable system for supporting and rotating the device under test relative to at least one calibration target system and one or more imaging systems distributed about a periphery of the turntable system. The calibration target system can comprise a calibration target device with calibration indicia and a calibration target positioning system for positioning the calibration target device relative to the sensor system; whereas, the imaging systems can capture an image of the device under test as the turntable system rotates the device under test. In selected embodiments, the calibration target system advantageously can calibrate sensor systems that support one or more Advanced Driver Assistance (ADAS) and Autonomous Vehicle (AV) applications when the sensor systems are associated with a passenger vehicle.

A system and method for aligning a floor target relative to a vehicle, the floor target including a calibration pattern for observation by a vehicle safety system sensor during calibration. The system includes at least one optical projection system consisting of at least one optical projector having an orientable projection axis. The optical projection system is operatively controlled by a processor to orient said projection axis towards a selected location on the floor surface relative to the vehicle, and to activate the optical projected to illuminate a point, a line, or a boundary, against which the floor target is aligned.

An illuminated sensor target includes a light source. Actuating the light source illuminates the sensor target. The illuminated sensor target is recognized by one or more sensors of a vehicle during a calibration process, and is used to calibrate the one or more sensors of the vehicle during the calibration process. The illuminated sensor target is illuminated during at least part of the calibration process, which may involve rotation of the vehicle about a turntable, with the illuminated sensor target positioned within a range of the turntable along with other sensors targets, which may also be illuminated.

An object of the present invention is to provide a method capable of calibrating a sensor function required in a safety design of a radar safety sensor in real time. A calibration station (11) is provided on a traveling route of an unmanned vehicle (1) on which a safety sensor (3) for detecting an obstacle (2) ahead is mounted, and a standard reflection is provided at a position of a maximum measurement distance (L) of the safety sensor (3) at the calibration station (11). Prior to normal traveling of the unmanned trolley 1, the unmanned trolley 1 is moved to the calibration station 11 in advance, and the reference value obtained by measuring the standard reflector 12 with the safety sensor 3 is taught, During normal operation of the unmanned trolley 1, every time the unmanned trolley 1 reaches the calibration station 11, the measured value obtained by measuring the standard reflector 12 by the safety sensor 3 is compared with a reference value. Calibrate the sensor function of FIG. 1.

A vehicle analysis environment includes one or more display screens, such as a display screen wall or an array of display screens. While a vehicle is in the vehicle analysis environment, a vehicle analysis system renders and displays one or more vehicle sensor calibration targets and/or one or more simulated events on the one or more display screens. Vehicle sensors of the vehicle capture sensor data while in the vehicle analysis environment. The sensor data depict the vehicle sensor calibration targets and/or the simulated events that are displayed on the one or more display screens. The vehicle can output actions based on the simulated event and/or can calibrate its vehicle sensors based on the vehicle sensor calibration targets.

A radar simulation device for testing a device under test with respect to at least one radar scenario is provided. The radar simulation device comprises a memory, a radar scenario simulator, and two or more antennas. The memory is configured to store the radar scenario with respect to the device under test, and to provide the radar scenario to the radar scenario simulator. The radar scenario simulator is configured to receive a first number of radar signals from the device under test via the at least two antennas, to simulate the at radar scenario by manipulating the first number of radar signals according to the radar scenario and generating a resulting second number of manipulated radar signals, and to transmit the second number of manipulated radar signals to the device under test via the at least two antennas.

An apparatus is for generating an emulated radar reflection signal of a target. The apparatus includes a radar detector configured to detect a radar signal frame emitted by a device under test (DUT), an emulation transmitter configured to generate an emulated radar reflection signal of a target being emulated, and a processor configured to generate control signals which control the emulation transmitter according to at least one characteristic of the target being emulated. The processor is further configured to determine a current radar parameter among plural possible radar parameters of the radar signal frame of the DUT, and to adapt the control signals which control the emulation transmitter according to the determined current radar parameter of the radar signal frame of the DUT.

A method for controlling the function of a vehicle radar transceiver (3), where the method includes transmitting (S100) a radar signal (5) and collecting and storing (S300) target data comprising a received detected signal level obtained from the reflected radar signals (6) that have been reflected by at least one target object (7) during a measurement angular interval (21). The method further includes determining (S400) that the radar transceiver (3) is functioning properly when at least one of the following conditions is met: the detected signal level exceeds a minimum signal level (12) during an angular interval (θ.sub.i) included in a measurement angular interval (21); and a detected signal level change for a certain angular change falls below a certain limit during an angular interval (θ.sub.i) included in the measurement angular interval (21).

An apparatus and device for repetitive use in automotive testing is provided. The apparatus includes a frame dimensioned in the same shape as a bicycle frame. The frame includes a first support beam and a plurality of second support beams. The apparatus further includes an elastic member elastically coupling each of the plurality of second support beams to the first support beam so as to allow the frame to separate when impacted and be easily reassembled for further testing. The device includes a disk having a first radar transparent layer opposite a second radar transparent layer and a reflective film disposed between the first radar transparent layer and the second radar transparent layer. The reflective film has a radar cross section pattern similar to that of an actual bicycle wheel when seen by automotive radar.

A method for generating a calibration curve of asphalt concrete of a known mix. Initially, a single sample of the known asphalt concrete mix is obtained. The single sample has a known percent voids. A dielectric measurement of the single sample is obtained. Using only the dielectric measurement of the single sample, the sample's known percent voids, and a dielectric of air, a theoretical ideal dielectric for the asphalt concrete mix at 0% voids is computed. A dielectric vs. percent voids calibration curve is generated based on the computed ideal dielectric.