Patent ID: 6778131
Filing Date: 2004-08-17
Classification: G01S

Abstract:
A method of aligning a radar transceiver unit on a vehicle, using at least three radar reflectors, comprising the steps of:a) positioning the radar reflectors in a pattern in which the reflectors are fixed relative to one another with the reflectors occupying three rows at different elevations and at least three different horizontal positions, so that the at least three reflectors arranged diagonally, so that the middle row is horizontally distinguishable from the neighboring rows; b) directing a beam of radar waves from the radar transceiver generally towards the radar reflectors; c) scanning the beam relative to the pattern so that the beam moves across the pattern at one elevation in a horizontal direction; d) receiving at the radar transceiver radar waves reflected from one or more of the reflectors; e) detecting the elevation of the middle row, including repeating, if necessary steps c) and d) at different elevations; f) setting the elevation of the beam of radar waves according to the detected elevation of the middle row.