Array antenna calibration method, apparatus and device and storage medium

Abstract

The embodiment of the invention discloses an array antenna calibration method, apparatus and device and a storage medium. The calibration method comprises the steps of obtaining first position information and feature information of a to-be-calibrated array antenna; determining second position information of the beacon according to the first position information and the feature information of the array antenna to be calibrated; controlling the aircraft to carry the beacon to fly and hover in the air at a fixed point according to the second position information, wherein the beacon is located ata second position indicated by the second position information; calibrating each channel of the array antenna to be calibrated by using the beacon at the second position. According to method disclosedin the the embodiment of the invention, the calibration process can be prevented from being influenced by ground and obstacle reflection, and the calibration precision is improved.

Description

Technical field[0001]The present invention relates to the field of communication technology, in particular to a calibration method, device, equipment and storage medium of an array antenna.Background technique[0002]Array antennas use multiple antenna units to achieve beam transmission and reception. Due to materials, devices, circuit production processes, etc., the channels corresponding to different antenna units have amplitude phase differences. Therefore, the corresponding channels of each antenna unit Performing amplitude and phase calibration to ensure that each channel has consistent amplitude and phase characteristics is a prerequisite for effective operation of the array antenna.[0003]The beacon-based far-field calibration is an ideal method for array antenna calibration. At present, the commonly used beacon-based far-field calibration uses ground beacons, that is, the beacon is placed on a flat open ground in the background, and the beacon and the array antenna to be calibr...

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Problems solved by technology

[0004] It is found in practice that ground and obstacle reflections will seriously affect the accuracy of ground far-field calibration. Therefore, ground-based beacon-based far-field calibration has high requirements for calibrating terrain, environment, etc. Moreover, the implementation of the far-field calibration project based on ground beacons is difficult and the cycle is long, and it cannot meet the calibration requirements of array antennas with high requirements for real-time and ease of use.

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