| 基于RD算法的横向规避弹道弹载SAR成像 |
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| 引用本文： | 秦玉亮,王建涛,王宏强,黎湘. 基于RD算法的横向规避弹道弹载SAR成像[J]. 系统工程与电子技术, 2010, 32(4): 729-733 |
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| 作者姓名： | 秦玉亮 王建涛 王宏强 黎湘 |
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| 作者单位： | （国防科学技术大学电子科学与工程学院， 湖南 长沙 410073） |
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| 摘 要： | 首先建立了通用的曲线弹道合成孔径雷达(synthesis aperture radar, SAR)回波信号模型，分析了加〖JP2〗速度引入的相位误差，推导了是否进行曲线弹道补偿的定量条件;然后针对横向规避弹道情况，分析了弹载SAR回波信号的特点，并根据弹载SAR的特点进行了合理近似，设计了基于距离 多普勒算法的成像方法。该算法与直线孔径下的距离 多普勒算法相比，仅仅修改了部分相位因子，没有因为孔径的非直线增加成像算法的复杂性。
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| 关 键 词： | 弹载合成孔径雷达 成像 横向规避弹道 |
Range-Doppler algorithm-based missile-borne SAR imaging with lateral avoidance trajectory |
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| QIN Yu-liang,WANG Jian-tao,WANG Hong-qiang,LI Xiang. Range-Doppler algorithm-based missile-borne SAR imaging with lateral avoidance trajectory[J]. System Engineering and Electronics, 2010, 32(4): 729-733 |
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| Authors: | QIN Yu-liang WANG Jian-tao WANG Hong-qiang LI Xiang |
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| Affiliation: | (School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China) |
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| Abstract: | The general relative range model for non-linear trajectory is built firstly,followed by the maneuver induced phase errors analysis.The quantitative conditions of ignoring these errors are deduced later.Then this paper concerns on the issue of missile-borne SAR in the trajectory with lateral maneuver: the characteristics of signals are analyzed and a range-Doppler based algorithm is presented according to these characteristics.Compared with the range-Doppler algorithm under linear aperture,the new one just m... |
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| Keywords: | missile-borne SAR imaging non-linear trajectory with lateral maneuver |
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