A radar device includes: plural unit antennas, each including plural antenna elements configured to transmit or receive a radio wave, the plural antenna elements being aligned in a predetermined direction in a plane and connected by a transmission line. The plural unit antennas include a first unit antenna having plural antenna elements arranged asymmetrically with respect to a virtual straight line parallel to the predetermined direction, the virtual straight line passing through an antenna phase center of the first unit antenna, and a second unit antenna having plural antenna elements arranged asymmetrically with respect to a virtual straight line parallel to the predetermined direction passing through an antenna phase center of the second unit antenna. The plural antenna elements of the second unit antenna are arranged in a manner substantially symmetrical to the plural antenna elements of the first unit antenna with respect to the virtual straight line.

A vehicle radar device includes a radar control unit, a first antenna array, a second antenna array, a first circuit board and a second circuit board. The first antenna array is communicatively connected to the radar control unit. The first antenna array includes a plurality of first transmitting elements and a plurality of first receiving elements. The second antenna array is communicatively connected to the radar control unit. The second antenna array includes a plurality of second transmitting elements and a plurality of second receiving elements. The first antenna array is a plurality of circuit board antennas and disposed on the first circuit board. The second antenna array is a plurality of circuit board antennas and disposed on the second circuit board.

Surface-penetrating radar (SPR) systems provide localization information for provision to a blockchain application. SPR can be used in environments, such as cities, where multipath or shadowing degrades GPS accuracy, or as an alternative to optical sensing approaches that cannot tolerate darkness or changing scene illumination or whose performance can be adversely affected by variations in weather conditions. In particular, SPR can be used to acquire scans containing surface and subsurface features as a vehicle traverses terrain, and the acquired data scans may be compared to reference scan data that was previously acquired within the same environment in order to localize vehicle position within the environment. If the reference scan data has been labeled with geographic location information, a vehicle's absolute location can thereby be determined.

A holder (2) for fixing a sensor (1) to a motor vehicle includes a frame (7) and walls that bound an opening (8) for receiving and fixing the sensor. At at least two opposing walls (10, 11) each respectively have at least one clamping portion (14) for clamping the sensor (1) in place in the opening. At least two further opposing walls (12, 13) each respectively have at least one receiving portion (19, 20) for receiving a portion (6) of the sensor (1), wherein at least one of the receiving portions (19) has a spring portion (18) for pretensioning the sensor (1) toward the opposing wall (12).

Low-cost devices for measuring radar transmission and/or reflectance of coated articles are provided. An exemplary low-cost radar transmission and reflection measurement device includes a radar transmitter that emits a radar signal, a radar target to which the radar signal is directed, and a radar receiver that receives the radar signal. Further, the exemplary low-cost device includes a sample holder located between the radar transmitter and the radar target and between the radar target and the radar receiver. The sample holder receives a sample including a coating. The low-cost device also includes a controller connected to the radar transmitter and radar receiver. The controller measures a radar signal loss due to the coating.

A vehicle includes a communicator that is mounted on the vehicle to perform wireless communication with a server and a controller operates the communicator to transmit an accident reception request signal and image data acquired by another vehicle to the server when the vehicle has an accident with an accident target vehicle. The controller operates the communicator to receive a fault ratio from the server when the server generates fault ratio data between the vehicle and the accident target vehicle based on the image data.

A vehicle component integrates an environment detection sensor into a vehicle. The vehicle component is in the form of a plastic component and has a main body with a recess for receiving the environment detection sensor. Towards a visible side of the vehicle component, the recess is delimited by a cover portion which has a signal passage surface or a signal passage opening.

This document describes techniques, apparatuses, and systems for sensor fusion for object-avoidance detection, including stationary-object height estimation. A sensor fusion system may include a two-stage pipeline. In the first stage, time-series radar data passes through a detection model to produce radar range detections. In the second stage, based on the radar range detections and camera detections, an estimation model detects an over-drivable condition associated with stationary objects in a travel path of a vehicle. By projecting radar range detections onto pixels of an image, a histogram tracker can be used to discern pixel-based dimensions of stationary objects and track them across frames. With depth information, a highly accurate pixel-based width and height estimation can be made, which after applying over-drivability thresholds to these estimations, a vehicle can quickly and safely make over-drivability decisions about objects in a road.

A vehicle structure includes a body, a bracket provided on the body, a bumper cover attached to the bracket, and an object detection device attached to the bracket.

A radar system (2) for a vehicle (1), having a radar transceiver (3) and a control unit (4), where the control unit (4) is adapted to control the radar transceiver to apply an initial signal power level (P.sub.i) for transmitted radar signals (5); and to receive reflected radar signals (6) that have been reflected by at least one object (7). The control unit (4) is further adapted to determine a total signal reduction level (L) for which at least one predetermined criterion is not met; to compare the total signal reduction level (L) to a threshold; and to determine whether the radar transceiver (3) is working in an acceptable manner or not in dependence of the comparison.