太赫兹科学与电子信息学报2018，Vol.16Issue(1)：31-37,7.DOI:10.11805/TKYDA201801.0031
太赫兹ISAR成像系统误差校正算法
Error correction algorithm for terahertz ISAR imaging system
摘要
Abstract
To deal with the effect of the nonlinear system error on the terahertz radar imaging, a system error correction algorithm based on minimum entropy is proposed. In the real terahertz inverse synthetic aperture radar imaging experiments, the intrinsic system error influences the echo phase and disperses the range profile, which will lead to the image degradation. After theoretical analysis of the error formulation, the phase error compensation model for 1D range profile is established. It is found that this error can be skillfully removed by the minimum entropy metric. Experimental results show a higher efficiency and better adaptability of the proposed method compared to that based on the reference reflection.关键词
太赫兹/逆合成孔径雷达成像/最小熵/误差校正Key words
terahertz/Inverse Synthetic Aperture Radar(ISAR)/minimum entropy/error correction分类
信息技术与安全科学引用本文复制引用
盛佳恋,何静,付朝伟,李银伟,王海涛..太赫兹ISAR成像系统误差校正算法[J].太赫兹科学与电子信息学报,2018,16(1):31-37,7.基金项目
国家自然科学基金资助项目(41601508) （41601508）
上海市自然科学基金资助项目(17ZR1428700 （）
15ZR1439500) （）
