Patent Document ID: 6130638
Application ID: 09182449
Patent Status: 1

Claim One:
1. A method for determining at least one of an azimuth angle and an elevation angle of at least one radar target, the at least one radar target located at a distance from a multibeam radar system, the method comprising the step of: recording, with the multibeam radar system, a plurality of echo signals of the at least one radar target using a plurality of beams; normalizing an amplitude of the recorded echo signal in each particular receiving beam of the plurality of beams; for each particular receiving beam of the plurality of beams, storing pattern values of an antenna pattern of the particular receiving beam; normalizing the pattern values; for each particular receiving beam of the plurality of beams, comparing the normalized amplitude of the recorded echo signal to the stored and normalized pattern values for generating corresponding comparison results; combining the corresponding comparison results for at least two receiving beams to form an angle-dependent analysis quantity, the angle-dependent analysis quantity including a phase angle of the recorded echo signals; and determining at least one of the azimuth angle and the elevation angle to be an angle whose angle-dependent analysis quantity corresponds to one of a maximum criterion and a minimum criterion.