Horizontal error detection and calibration system for vehicle scanning radar - detects difference between stored reference point position when vehicle has no horizontal error, with sensed position of defined point of obstacle

摘要

The system detects the horizontal error between the centre line of the scanning radar and the travel direction of the vehicle when moving straight ahead, by comparing a stored reference point location corresponding to a zero horizontal error and the location of a defined point obtained from detected obstacle data. Pref., the reference point is defined by a reflector mounted on the kerb edge, its location defined by the measured distance from the vehicle vertical axis. USE - For calibrating radar to compensate mounting error, difference between right and left wheels or error resulting from uneven weighting of vehicle.