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基于ISAR像序列的弹道目标进动特征提取

JIN Guang-hu,GAO Xun-zhang,LI Xiang,CHEN Yong-guang

Acta Electronica Sinica（2010）

Cited 9|Views35
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Abstract
中段弹道目标进动特征是分辨弹头及诱饵的重要依据.以二维ISAR图像序列为基础,分析了弹道目标成像特点和目标姿态角的变化过程,提出了基于图像配准的ISAR像姿态差估计方法;采用等间隔配准避免了配准奇异,根据姿态差二次方曲线实现了进动参数的估计,给出了计算目标进动角、进动周期的具体步骤.仿真结果表明,该方法能够实现弹道目标进动特征提取,估计精度较高.
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Key words
Ballistic target,Feature extraction,ISAR image,Precession,Registration
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