| 利用SAR多目标回波估计多普勒参数 |
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| 引用本文： | 王亮,周智敏.利用SAR多目标回波估计多普勒参数[J].现代雷达,2007,29(10):40-43. |
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| 作者姓名： | 王亮 周智敏 |
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| 作者单位： | 国防科技大学电子科学与工程学院,长沙,410073 |
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| 摘 要： | 从回波中估计多普勒参数是合成孔径雷达运动补偿的关键。文中研究了多目标回波对参数估计的影响,从理论上推导了估计多普勒中心和调频率对回波的不同要求,并用两个指标举例分析了一段实测机载SAR数据,给出了实际应用中参数估计时选择回波的原则。
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| 关 键 词： | SAR多目标回波 多普勒中心 多普勒调频率 参数估计 |
| 修稿时间： | 2007-05-11 |
Doppler Parameters Estimation with SAR Echoes from Multiple Targets |
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| WANG Liang,ZHOU Zhi-min.Doppler Parameters Estimation with SAR Echoes from Multiple Targets[J].Modern Radar,2007,29(10):40-43. |
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| Authors: | WANG Liang ZHOU Zhi-min |
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| Affiliation: | School of Electronic Science and Engineering, Changsha 410073, China |
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| Abstract: | Doppler parameters estimation from radar echoes is a key step in SAR(Synthetic Aperture Radar) motion compensation.This paper researched the effect of multiple targets echoes to estimate parameters and deducted theoretically the different requirement for echoes in estimating doppler centroid and doppler frequency modulation rate.Then giving a real airborne SAR echo as example,we analyzed it with two measurements and concluded the principle about choosing echoes in practice. |
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| Keywords: | SAR echoes from multiple targets Doppler centroid Doppler frequency modulation rate parameters estimation |
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