COMPENSATION METHOD ON LOW ELEVATION ANGLE ERRORS IN MULTIPATH ENVIRONMENT

摘要

A method for compensating low elevation angle errors of a multibeam radar in a multipath environment is provided. Embodiments of the present invention include: a step of receiving at least one target signal by a multibeam radar; a step of calculating an elevation angle of the target from the received target signal using a mono pulse method; a step of using a result, which used the mono pulse method, as an elevation angle of the real target if the elevation angle of the target is out of a first reference range; a step of selectively compensating elevation angle errors of the target using a void matrix calculated from a received beam pattern using search radar near-field measurement if the elevation angle of the target is within the first reference range and exceeds a predetermined threshold value; and a step of compensating the elevation angel errors of the target using an elevation error compensation table which is formed by algebraically converting a ratio of the signal intensity between the received beam and received beam adjacent to the received beam if the elevation angle of the target is within the first reference range and satisfies a second reference range below the predetermined threshold value.