Patent ID: 6476760
Filing Date: 2002-11-05
Classification: G01S

Abstract:
A method of determining an elevation angle error in a multibeam radar sensor, comprising:directing at least two transmitted beams onto a radar target; determining and storing comparison values of an antenna diagram in a basic plane in a cutting plane formed by the multibeam radar sensor and the radar target; comparing reflected received beams of the at least two transmitted beams to the previously determined and stored comparison values for each reflected received beam; determining an elevation angle from the comparison values; forming at least one additional, laterally arranged cutting plane at a predefined distance; determining values for at least one additional reference antenna diagram as a function of the elevation angle; storing the values for the at least one additional reference antenna diagram in a memory for each additional, laterally arranged cutting plane; and determining an error angle for the elevation angle from a comparison with the at least one additional reference antenna diagram.