| 改进的波数域算法处理带有运动误差的机载SAR数据 |
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| 引用本文： | 刘红玲.改进的波数域算法处理带有运动误差的机载SAR数据[J].科学技术与工程,2010,10(27). |
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| 作者姓名： | 刘红玲 |
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| 作者单位： | 贵州师范学院物理与电子科学学院,贵阳,550018 |
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| 摘 要： | 机载SAR的一个关键问题就是准确的运动补偿.如果载机满足理想的匀速直线运动,传统的波数域算法是一种理想的成像算法,尤其在处理高斜视角和大孔径的SAR数据时,但它在处理带有运动误差的机载SAR数据时有一定的局限性,研究了改进的波数域算法,使之能与两步运动补偿技术结合,从而极大地扩展了波数域算法的应用范围.给出了仿真与原始数据成像结果.
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| 关 键 词： | 合成孔径雷达(SAR) 传统的波数域算法(CWD) 改进的波数域算法(EWD) 运动补偿(MOCO) |
| 收稿时间： | 5/26/2010 7:48:19 PM |
| 修稿时间： | 7/11/2010 1:29:22 PM |
Extended Wavenumber Domain Algorithm Processes Airborne SAR data with motion error |
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| Liu Hongling.Extended Wavenumber Domain Algorithm Processes Airborne SAR data with motion error[J].Science Technology and Engineering,2010,10(27). |
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| Authors: | Liu Hongling |
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| Institution: | LIU Hong-ling(School of Physics and Electronic Sciences,Guizhou Normal College,Guiyang 550018,P.R.China) |
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| Abstract: | A key problem for airborne SAR is the accurate motion compensation. Conventional Wavenumber Domain Algorithm is an ideal solution of SAR focusing problem as long as nominal straight flight track is given, especially in the case of high squint angles and long synthetic apertures, but it has certain limitation in processing airborne SAR data affected by motion error. Extended Wavenumber Domain Algorithm is presented to overcome the drawback of CWD being unable to integrate with motion compensation. It is detailedly discussed that EWD combines two-step motion compensation processing airborne SAR data affected by motion error in the paper and simulation is given. |
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| Keywords: | Conventional Wavenumber Domain Algorithm Extended Wavenumber Domain Algorithm motion compensation |
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