| 小波插值在机载超宽带合成孔径雷达成像中的应用 |
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| 引用本文： | 郭汉伟,王岩,梁甸农,黄晓涛.小波插值在机载超宽带合成孔径雷达成像中的应用[J].航空学报,2003,24(6):551-554. |
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| 作者姓名： | 郭汉伟 王岩 梁甸农 黄晓涛 |
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| 作者单位： | 国防科技大学,电子科学与工程学院,湖南,长沙,410073 |
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| 基金项目： | 雷达信号处理国防科技重点实验室基金项目(51431020101KG01)支持 |
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| 摘 要： | 通过解方程构造一组424 整数小波,利用整数小波的尺度函数作为插值基函数, 进行波数域算法的Stolt 插值,整个插值过程中只有加法和移位运算,便于硬件实现。仿真计算验证了快速算法的有效性。
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| 关 键 词： | 超宽带合成孔径雷达 波数域算法 Stolt插值 小波变换 |
| 文章编号： | 1000-6893(2003)06-0551-04 |
| 修稿时间： | 2002年10月9日 |
Application of Wavelet Interpolation in Ultra-Wide Band Airborne SAR Imaging |
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| GUO Han wei,WANG Yan,LIANG Dian nong,HUANG Xiao tao.Application of Wavelet Interpolation in Ultra-Wide Band Airborne SAR Imaging[J].Acta Aeronautica et Astronautica Sinica,2003,24(6):551-554. |
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| Authors: | GUO Han wei WANG Yan LIANG Dian nong HUANG Xiao tao |
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| Institution: | College of Electronics; National University of Defense Technology; Changsha 410073; China |
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| Abstract: | Wave number Domain Imaging algorithm can deal with ultra wide band synthesis aperture radar imaging. Stolt interpolation is a key role in wave number domain imaging algorithm and is an unevenly interpolation problem. There is no fast computation algorithm. 4 4 tap of biorthnormal integer wavelet filters are constructed by solving the equation. The wavelets are used as the interpolation base function in Stolt interpolation step. There are only plus and shift operations and no multiplication in interpolation by wavelets. The wave number domain imaging algorithm due to wavelet interpolation becomes easy to realize in hardware. The simulation results demonstrate the efficiency of this new interpolation algorithm. |
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| Keywords: | UWB-SAR wave number imaging algorithm Stolt interpolation wavelet transform |
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