Abstract: Devices, systems, and methods are provided for an enhanced anechoic chamber. An enhanced anechoic chamber device may operate a gimbal setup attached to a mounting arm of an anechoic chamber and a radar under test to modify an azimuth angle and an elevation angle of a radar under test. The enhanced anechoic chamber device may cause the radar under test to transmit one or more signals towards one or more reflectors situated in a field of view of the radar through an aperture of an anechoic chamber, wherein the one or more reflectors are situated outside the anechoic chamber. The enhanced anechoic chamber device may receive reflected signals from the one or more reflectors at the radar under test, wherein the reflected signals pass through the aperture before reaching the radar under test. The enhanced anechoic chamber device may measure signal energy of at least one of the reflected signals. The enhanced anechoic chamber device may generate an output indicating an operational status of the radar under test.

Abstract: Devices, systems, and methods are provided for radar elevation angle measurement. A radar elevation angle measurement system may transmit one or more signals from a radar towards a reflection structure comprised of individually controlled motors operable to rotate one or more corner reflectors. The radar elevation angle measurement system may receive echo signals at the radar from each of the one or more corner reflectors that sequentially transitioned to an ON position based on each of the one or more corner reflectors being sequentially rotated to be in an ON then an OFF positions. The radar elevation angle measurement system may collect data associated with the echo signals received from the one or more corner reflectors. The device may identify peak signal values based on the collected data. The radar elevation angle measurement system may calculate a radar pitch angle of the radar based on the peak signal values.

Abstract: 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.

Abstract: Devices, systems, and methods are provided for sensor health and regression testing. A sensor testing system may include a first plurality of sensor testing targets positioned on a first side of a vehicle at a first distance from the vehicle, a second plurality of sensor testing targets positioned on a second side of the vehicle at the first distance, and a first sensor testing target positioned at a second distance from the vehicle, the second distance further from the vehicle than the first distance. The first and second pluralities of sensor testing targets both may include three or more sensor testing targets for testing cameras and light detection and ranging (LIDAR) sensors of the vehicle. The first sensor testing target may be used to test at least one of camera or LIDAR data. The sensor testing system may identify degradation of sensor performance, triggering further analysis and/or repairs.

Abstract: Devices, systems, and methods are provided for an enhanced anechoic chamber. An enhanced anechoic chamber device may operate a gimbal setup attached to a mounting arm of an anechoic chamber and a radar under test to modify an azimuth angle and an elevation angle of a radar under test. The enhanced anechoic chamber device may cause the radar under test to transmit one or more signals towards one or more reflectors situated in a field of view of the radar through an aperture of an anechoic chamber, wherein the one or more reflectors are situated outside the anechoic chamber. The enhanced anechoic chamber device may receive reflected signals from the one or more reflectors at the radar under test, wherein the reflected signals pass through the aperture before reaching the radar under test. The enhanced anechoic chamber device may measure signal energy of at least one of the reflected signals. The enhanced anechoic chamber device may generate an output indicating an operational status of the radar under test.

Abstract: 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.

Abstract: 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.

Abstract: An automated vehicle radar system capable of self-calibration includes an antenna, a transceiver, and a controller. The antenna broadcasts a radar-signal and detects a reflected-signal reflected by an object. The transceiver determines a distance, an angle, and a range-rate of the object relative to the antenna based on the radar-signal and the reflected-signal. The controller determines a speed of a host-vehicle; determines when the object is stationary based on the speed, the angle, and the range-rate; stores in a memory a plurality of detections that correspond to multiple instances of the distance, the angle, and the range-rate as the host-vehicle travels by the object; selects an ideal-response of angle versus range-rate based on the speed; determines a calibration-matrix of the system based on a difference between the plurality of detections and the ideal-response; and adjusts an indicated-angle to a subsequent-object in accordance with the calibration-matrix.

Abstract: An automated vehicle radar system capable of self-calibration includes an antenna, a transceiver, and a controller. The antenna broadcasts a radar-signal and detects a reflected-signal reflected by an object. The transceiver determines a distance, an angle, and a range-rate of the object relative to the antenna based on the radar-signal and the reflected-signal. The controller determines a speed of a host-vehicle; determines when the object is stationary based on the speed, the angle, and the range-rate; stores in a memory a plurality of detections that correspond to multiple instances of the distance, the angle, and the range-rate as the host-vehicle travels by the object; selects an ideal-response of angle versus range-rate based on the speed; determines a calibration-matrix of the system based on a difference between the plurality of detections and the ideal-response; and adjusts an indicated-angle to a subsequent-object in accordance with the calibration-matrix.

Abstract: An automated vehicle radar system capable of self-calibration includes an antenna, a transceiver, and a controller. The antenna broadcasts a radar-signal and detects a reflected-signal reflected by an object. The transceiver determines a distance, an angle, and a range-rate of the object relative to the antenna based on the radar-signal and the reflected-signal. The controller determines a speed of a host-vehicle; determines when the object is stationary based on the speed, the angle, and the range-rate; stores in a memory a plurality of detections that correspond to multiple instances of the distance, the angle, and the range-rate as the host-vehicle travels by the object; selects an ideal-response of angle versus range-rate based on the speed; determines a calibration-matrix of the system based on a difference between the plurality of detections and the ideal-response; and adjusts an indicated-angle to a subsequent-object in accordance with the calibration-matrix.

Abstract: An automated vehicle radar system capable of self-calibration includes an antenna, a transceiver, and a controller. The antenna broadcasts a radar-signal and detects a reflected-signal reflected by an object. The transceiver determines a distance, an angle, and a range-rate of the object relative to the antenna based on the radar-signal and the reflected-signal. The controller determines a speed of a host-vehicle; determines when the object is stationary based on the speed, the angle, and the range-rate; stores in a memory a plurality of detections that correspond to multiple instances of the distance, the angle, and the range-rate as the host-vehicle travels by the object; selects an ideal-response of angle versus range-rate based on the speed; determines a calibration-matrix of the system based on a difference between the plurality of detections and the ideal-response; and adjusts an indicated-angle to a subsequent-object in accordance with the calibration-matrix.