残余运动误差对机载多波段SAR 图像配准的影响分析

doi:10.12000/JR14065

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摘要

多波段SAR 是SAR 技术发展的一个重要方向，不同波段SAR 图像之间的精确配准是综合利用多波段SAR 图像信息的前提。运动测量系统的误差(即残余运动)是影响图像配准的重要误差来源之一。针对这一问题，该文研究了残余运动误差对SAR 成像几何定位的影响，在此基础上定量分析了残余运动与机载多波段SAR 图像配准精度之间的关系，并通过仿真验证了理论分析的正确性。

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	吴琴霞
	梁兴东
	李焱磊
	周良将

关键词 ：多波段, 机载SAR, 残余平动误差, 残余姿态误差, 图像配准

Abstract：

Multiband SAR is an important trend in SAR technology. Accurate registration among different band SAR images is a prerequisite for the comprehensive utilization of the information of multiband SAR images. Errors in the motion measurement system (i.e., residual motion) are major error sources affecting image registration. To solve this problem, the effect of residual motion error on SAR imaging geometry positioning is investigated. The relation between residual motion and image registration accuracy of airborne multiband SAR is analyzed quantitatively. The results of the theoretical analysis are verified by simulation experiments.

Key words： Multiband Airborne Synthetic Aperture Radar (SAR) Residual trajectory deviation Residual attitude error Image registration

收稿日期: 2014-04-03 出版日期: 2014-10-09

TN958

基金资助:

国家部委基金资助课题

作者简介: 吴琴霞(1988-)，籍贯山西，2014年于中国科学院电子学研究所获得工学硕士学位，研究方向为高分辨率SAR信号处理。E-mail: wuqx1988@126.com 梁兴东(1973-)，男，研究员，研究领域包括高分辨率合成孔径雷达系统、干涉合成孔径雷达系统、成像处理及应用和实时数字信号处理。E-mail: xdliang@mail.ie.ac.cn 李焱磊(1983-)，男，籍贯河北，中国科学院电子学研究所助理研究员，主要研究方向为机载差分干涉SAR 信号处理。E-mail: yllee@mail.ie.ac.cn

引用本文:

吴琴霞, 梁兴东, 李焱磊, 周良将. 残余运动误差对机载多波段SAR 图像配准的影响分析[J]. 雷达学报, 2015, 4(2): 209-216. Wu Qin-xia, Liang Xing-dong, Li Yan-lei, Zhou Liang-jiang. Analysis of the Residual Motion Error Impact on Airborne Multiband SAR Image Registration. JOURNAL OF RADARS, 2015, 4(2): 209-216.

链接本文:

http://radars.ie.ac.cn/CN/10.12000/JR14065 或 http://radars.ie.ac.cn/CN/Y2015/V4/I2/209

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