| 引用本文: | 粟毅,梁甸农.冲激信号SAR反向投影成像方法I、Q 实现.[J].国防科技大学学报,1998,20(2):65-68.[点击复制] |
| Su Yi,Liang Diannong.Back Projection Imaging I、Q Realization of Impulse Signal SAR[J].Journal of National University of Defense Technology,1998,20(2):65-68[点击复制] |
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| 冲激信号SAR反向投影成像方法I、Q 实现 |
| 粟毅, 梁甸农 |
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(国防科技大学 电子技术系 湖南 长沙 410073)
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| 摘要: |
| 本文在分析冲激信号成像特点的基础上, 说明了线阵模型是解释冲激信号SAR成像过程的有效方法, 给出了冲激信号SAR反向投影(BP)方法, 针对系统实现问题, 提出了对I、Q 两路信号分别积累, 求模的BPIQ法, 并以计算机仿真及与常规的BP作比较, 最后给出了一些有用的结论。 |
| 关键词: 冲激信号, 合成孔径, 成像, 反向投影 |
| DOI： |
| 投稿日期：1997-08-25 |
| 基金项目:国家自然科学基金资助项目 |
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| Back Projection Imaging I、Q Realization of Impulse Signal SAR |
| Su Yi, Liang Diannong |
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(Department of Electronic Technology, NUDT, Changsha, 410073)
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| Abstract: |
| The characteristics of impulse signal synthetic aperture radar (SAR) imaging are analyzed in this paper. It is shown that the linear array model is an efficient interpretation to the azimuth integration of an impulse SAR. Back projection (BP) method can be comprehended easily with a linear array model. With respect to the algorithm realization in a field system, the BPIQ method with back projection to I, Q channels respectively and then evaluating the module of two integration's is presented. Computer simulations show that the imaging results of BPIQ are better than those of the ordinary BP algorithm. |
| Keywords: Impulse Signal, Synthetic Aperture, Imaging, Back Projection |
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