太赫兹科学与电子信息学报2018，Vol.16Issue(1)：51-56,6.DOI:10.11805/TKYDA201801.0051
相控阵体制SAR系统的误差建模与补偿方法
Error modeling and compensation for phased array antenna SAR system
摘要
Abstract
The non-ideal characteristics of central electronic equipment and phased array antenna in Synthetic Aperture Radar(SAR) system can introduce systematic errors, which may contribute to amplitude and phase errors of SAR signal, and hence degrades SAR images. A model is presented to derive signal errors due to non-ideal characteristics of central electronic equipment and phased array antenna, and a method is proposed to correct the errors. The model shows that the error resulting from central electronic equipment is almost invariant, while the error resulting from phased array antenna varies with the direction of the beam and is modulated by the attenuation and phase shift amount of T/R. The system error of phased array antenna SAR can be extracted by system testing or analysis calculation, and then can be compensated during SAR imaging process.关键词
相控阵天线/合成孔径雷达/系统误差补偿Key words
phased array antenna/Synthetic Aperture Radar/system error compensation分类
信息技术与安全科学引用本文复制引用
毛永飞,高文军,韩运忠..相控阵体制SAR系统的误差建模与补偿方法[J].太赫兹科学与电子信息学报,2018,16(1):51-56,6.基金项目
国家自然科学基金资助项目(61302165) （61302165）
