上海航天（中英文）2024，Vol.41Issue(2)：75-80,6.DOI:10.19328/j.cnki.2096-8655.2024.02.010
一种大型相控阵雷达外场高精度相位校正方法
A High-precision Outfield Phase Calibration Method for Large Phased Array Radar
叶君好 1许文彤 1庞钰宁 1叶彬 1任志诚1
作者信息
- 1. 太原卫星发射中心,山西 太原 030001
- 折叠
摘要
Abstract
In order to solve the problem that the outfield phase calibration of large phased array radar cannot guarantee the calibration accuracy due to the influence of wind,a high-precision outfield phase grading calibration method is proposed.The laser calibration method is used to measure the sloshing curve and the maximum sloshing speed of the calibration source under wind load conditions.According to the radar operating frequency band and the calibration accuracy requirements,the minimum calibration duration guaranteeing the accuracy is calculated when the sloshing speed of the calibration source is maximum.The obtained minimum calibration duration is then used as the basis for the size division of the hierarchical subarray,and the full array outfield calibration is completed through multi-level calibration.The test results show that under the level 5 wind load condition,the root mean square(RMS)of the X-band phase calibration accuracy is less than 5.8°,and the maximum grating lobe level is reduced by 9 dB,which meets the accuracy requirements of the analog phase shifter.关键词
大型相控阵/高精度相位校正/分级校正/风载条件/校正时间Key words
large phased array/high-precision phase calibration/grading calibration/wind load condition/calibration duration分类
信息技术与安全科学引用本文复制引用
叶君好,许文彤,庞钰宁,叶彬,任志诚..一种大型相控阵雷达外场高精度相位校正方法[J].上海航天（中英文）,2024,41(2):75-80,6.
