A device includes an input interface for receiving a target list for the MIMO radar sensor containing angular data including information regarding a target angle, at which the target is located, and channel data including information regarding reflection signals received from the target in individual channels in the MIMO radar sensor; a modeling unit for generating model data for each of the targets; a processor for determining a model error for each of the targets, containing information regarding a discrepancy between the channel data and the model data for the target; a selector for selecting one of the targets on the basis of the model error; and an adjustment unit for determining calibration coefficients for adjusting the channel outputs in the MIMO radar that compensate for the discrepancies between the channel data and the model data.

A test bench (1) is described and shown for testing a distance sensor (2) operating with electromagnetic waves, wherein the distance sensor (2) to be tested comprises at least one sensor radiating element (3a) for radiating a transmission signal (4) and a sensor receiving element (3b) for receiving a reflection signal, with a receptacle (5) for holding the distance sensor (2) to be tested, with an at least partially movable connecting member (6, 6m, 6s) in the radiation area of a distance sensor (2) held in the receptacle (5), with at least one test bench receiving element (7) held in the connecting member (6, 6m, 6s) for receiving a transmission signal (4) radiated by the sensor radiating element (3a), and with at least one test bench radiating element (8) held in the connecting member (6) for radiating a test bench transmitting signal (9) as a simulated reflection signal.

A reliable environment simulation, in particular for the testing of multiple input-multiple output distance sensors (2) is achieved in that at least one test bench receiving element (7, 7a, 7b) and one test bench radiating element (8, 8a, 8b) are arranged together in a movable part (6m) of the connecting member (6).

Devices, systems, and methods are provided for radar elevation angle validation. A radar elevation angle validation device transmit, from a radar, one or more signals towards a corner reflector situated in a direction of the radar. The radar elevation angle validation device may receive, at the radar, reflected signals from the corner reflector. The radar elevation angle validation device may measure signal energy of at least one of the reflected signals. The radar elevation angle validation device may access a baseline dataset based on the measured signal energy. The radar elevation angle validation device may retrieve a radar elevation angle from the baseline dataset corresponding to the measured signal energy. The radar elevation angle validation device may compare the radar elevation angle to a validation threshold. The radar elevation angle validation device may determine a radar validation status based on the comparison.

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.

A vehicle radar inspection system and method are provided for inspecting a mounting state of a radar sensor mounted to a vehicle. The vehicle radar inspection system includes a centering portion that aligns a position of the vehicle by driving rollers, displacement sensors that are respectively disposed at front and rear sides of the centering portion, an array antenna that measures propagation intensity of a radar signal transmitted from the radar sensor, and a server that connects wireless communication with a wireless terminal of the vehicle, calculates a mounting position of the radar sensor, and detects a mounting error of the radar sensor with reference to a normal reference mounting specification.

Each pattern being associated with a reception channel, over a given time period, the unsolicited asynchronous replies, of long ADS-B squitters type, transmitted by targets present in the airborne environment of the radar, are detected, each of the squitters containing position information on the target which transmits it; for each detection, the long ADS-B squitter is decoded to check that the detected target is located in accordance with the position information contained in the squitter, the non-conforming detections being rejected; for each detection retained, the time of the detection, the value of the azimuth of the main beam of the antenna and the received power value on each of the reception channels is associated with the detection, the position information contained in the squitters giving the elevation segment wherein the detection is situated; the values obtained over the period being stored, the measured patterns being sampled, by elevation segment, from the stored values.

A system for drone radar includes an antenna array. The antenna array includes an arc configuration. A set of transmitter antennas and a set of receiver antennas are arranged in an arc along the arc configuration.

Various communication systems may benefit from enhanced reception methods. For example, various transponders and surveillance systems may benefit from reception methods that can distinguish between overlapping pulses from multiple sources. A method can include receiving, at an antenna, a first series of pulses from a first source. The method can also include receiving, at the antenna, a second series of pulses from a second source. The first series and the second series can at least partially overlap each other. The method can further include de-interleaving the first series from the second series using at least one non-time-domain technique.

An autonomous driving assembly for a vehicle includes a plurality of lidar groups supported by a vehicle body of the vehicle and collectively configured to detect a periphery region in proximity to the vehicle body. Different ones of the plurality of lidar groups are supported at different areas of the vehicle body and have different group fields of view. At least two of the different group fields of view overlap with each other. Each of the plurality lidar groups includes a plurality of lidar units fixed at a same location. Different ones of the plurality of lidar units have different unit fields of view. At least two of the different unit fields of view overlap with each other.

An object detection apparatus applied to a vehicle having a sensor unit mounted on a predetermined member provided to the vehicle, the sensor unit being provided with an object detection sensor that detects position information of an object present around the vehicle and a tilt sensor that detects a tilt angle as inclination with respect to a predetermined direction, and performing a process of detecting the object based on the position information of the object detected by the object detection sensor, the object detection apparatus comprising a detachment state determination section that determines a detachment state of the predetermined member based on the tilt angle detected by the tilt sensor.