A system for infrastructure system calibration includes a sensor configured to be mounted to an infrastructure component and configured to detect an object. A corner reflector has an optical pattern and is arranged within a field of view of the sensor. The corner reflector has three surfaces that meet at a point.

A system for assisting the positioning, in particular the orientation, with regard to a target position, of an antenna of a beacon intended to be in communication link by radio signal with a transmitter/receiver device, the system including a system for representation of a lobe of the radiation pattern of the antenna of the beacon on a projection surface of an environment in which said beacon is intended to be installed, and a system for measuring a distance separating the beacon and at least one point on the projection surface corresponding to the target position or positions.

A mount for securing an element such as a radar transceiver on a vehicle includes a bracket securable to a vehicle bumper or other component. A cover plate is securable to the vehicle component opposite the bracket, and fasteners are extended through the cover plate and the bracket to clamp the bracket and the cover plate against opposite sides of the vehicle component, with the radar transceiver or other element located between the cover plate and a base of the bracket. An alignment arrangement may be included to permit changes to the positioning of the radar transceiver or other element between the cover plate and the base of the bracket for proper transceiver alignment. A process of securing a radar transceiver or other element on a vehicle is also described.

A method for detecting misalignment of a radar sensor positioned on a vehicle. A Doppler spectrum for the radiation emitted and received by the radar sensor is ascertained. For at least one frequency bin of the Doppler spectrum, an angle of incidence is determined in at least a subinterval. The determined angle of incidence is compared to the angle of incidence expected for the frequency bin. A misalignment of the radar sensor is detected as a function of the difference of the measured angle of incidence from the expected angle of incidence.

A method for checking a calibration of N environmental sensors, wherein the N environmental sensors acquire an environment and each provide sensor data, N subfusions are formed from the acquired sensor data, each of the N subfusions leaves sensor data of one singular one of the N environmental sensors unconsidered upon the fusing, fusion results of the N subfusions are compared to one another, an incorrect calibration of the N environmental sensors is established based on a comparison result, and a check result is provided. Also disclosed are an associated device and a transportation vehicle.

According to an aspect, method of enhancing a resolution in a radar system having an antenna aperture comprises measuring a first radiation pattern corresponding to a first set of receiving antennas by feeding a known radio frequency (RF) signal over the first set of receiving antennas, wherein the first set of radiation due to an impairment, coherently combining an interpolated radiation pattern with a received radar signal received by the set of receiving antenna when employed for an object detection, to generate a high signal to noise ratio (SNR) received signal, and iteratively combining the high SNR received signal with the interpolated signal to reduce the error due to the impairment.

The present invention relates to the technical field of device calibration, and in particular to an ADAS system calibration guiding method and apparatus, and a vehicle diagnosis device. The method comprises: after a calibration request from a user for an ADAS system of a vehicle is received, prompting the user to select a maintenance scenario for calibrating the ADAS system; according to the maintenance scenario selected by the user, determining the ADAS system to be calibrated in the maintenance scenario, and giving a prompt regarding a calibration tool required for calibrating the ADAS system to be calibrated; giving a prompt regarding a positioning method for the calibration tool: after an indication of the user that the positioning of the calibration tool is completed is received, instructing the vehicle to calibrate the ADAS system to be calibrated; and acquiring a calibration result of the ADAS system to be calibrated, and outputting a calibration analysis report according to the calibration result. According to the method, the apparatus, and the vehicle diagnosis device provided by the embodiments of the present invention, the user can easily and efficiently complete the calibration of the ADAS system within a short time, thereby improving the efficiency and the convenience of the calibration of the ADAS system.

Systems, methods, tangible non-transitory computer-readable media, and devices associated with radar validation and calibration are provided. For example, target positions for targets can be determined based on imaging devices. The targets can be located at respective predetermined positions relative to the imaging devices. Radar detections of the targets can be generated based on radar devices. The radar devices can be located at a predetermined position relative to the imaging devices. Filtered radar detections can be generated based on performance of filtering operations on the radar detections. A detection error can be determined for the radar devices based on calibration operations performed using the filtered radar detections and the target positions determined based on the one or more imaging devices. Furthermore, the radar devices can be calibrated based on the detection error.

An outside sensor unit includes an outside sensor, a main bracket, a support bracket, a rotation device, and a position adjustment device. The outside sensor detects the outside of a vehicle. The main bracket is attached to a vehicle body. The support bracket supports the outside sensor and is attached to the main bracket. The rotation device has a rotation axis line which is substantially parallel to a roll axis of the vehicle and connects the support bracket and the main bracket together rotatably around the rotation axis line. The position adjustment device is capable of adjusting the relative rotation position between the support bracket and the main bracket around the rotation axis line.

An apparatus for correcting an error of a radar sensor for a vehicle and a method thereof can correct a target measurement error of the radar sensor installed inside a bumper of the vehicle based on target information obtained from a camera image. The apparatus includes: a radar sensor that is installed inside a bumper of the vehicle to detect a target, a camera that photographs a surrounding image of the vehicle, and a controller that corrects a target detection error of the radar sensor based on target information obtained from an image photographed by the camera.