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| 线性调频步进雷达ISAR信号特性及成像 | |
| 引用本文： | 张小红,杨敏,李亚超,李庆.线性调频步进雷达ISAR信号特性及成像[J].海军航空工程学院学报,2010,25(4):381-387. |
| 作者姓名： | 张小红 杨敏 李亚超 李庆 |
| 作者单位： | 1. 海军驻西安二十所军事代表室 2. 总装备部驻华县地区军事代表室 3. 西安电子科技大学,西安,710068 |
| 摘 要： | 文章在建立了线性调频步进ISAR回波信号模型的基础上,对线性调频步进雷达ISAR信号特性进行了详细的分析,指出了由径向速度和转动速度所引起的耦合项、一次项和二次项对距离合成高分辨和方位聚焦的影响;给出了线性调频步进雷达ISAR成像的详细步骤,并用仿真论证了文章分析的可靠性。 |
| 关 键 词： | ISAR（逆合成孔径雷达成像） 线性调频步进雷达 耦合项 方位聚焦 |
Analysis of the Feature and the Imaging Based on LMFS ISAR Signal |
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| ZHANG Xiao-hong,YANG Min,LI Ya-chao and LI Qin.Analysis of the Feature and the Imaging Based on LMFS ISAR Signal[J].Journal of Naval Aeronautical Engineering Institute,2010,25(4):381-387. | |
| Authors: | ZHANG Xiao-hong YANG Min LI Ya-chao and LI Qin |
| Institution: | ZHANG Xiao-hong,YANG Min,LI Ya-chao,LI Qin (1.Military Representatives Office of Navy in No.20 Institute in Xi’an; 2.Military Representatives Office of General Equipment Department in Huaxian Area; 3.Xidian University,Xi’an 710068,China) |
| Abstract: | The feature of linearly modulated frequency stepped radar signal （LMFS） was analyzed based on the ISAR model. The influence of the coupled term, the first order term and the quadratic term to the high resolution combination of the range and the azimuth focusing was also analyzed. In the end, the steps of linearly-modulated frequency stepped radar ISAR imaging were presented. The simulation result confirmed the reliability of the analysis. |
| Keywords: | ISAR linearly modulated frequency stepped radar （LMFS） the coupled term the azimuth focusing |
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