| 多基站ISAR多运动目标成像与横向定标研究 |
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| 引用本文： | 云日升.多基站ISAR多运动目标成像与横向定标研究[J].宇航学报,2012,33(1):107-112. |
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| 作者姓名： | 云日升 |
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| 作者单位： | (中国科学院空间科学与应用研究中心，北京 100190) |
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| 基金项目： | 国家自然科学基金(60802071) |
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| 摘 要： | 在多基站ISAR多运动目标回波模型的基础上，采用时间-调频斜率分布估计各基站多个目标的信号参数，基于CLEAN算法实现了各基站多个目标的信号分离。利用多个基站获得的目标的信号参数和多个ISAR图像，估计目标的运动参数,实现多个目标的横向尺度标定，同时给出了多基站ISAR多目标成像和横向定标的约束条件。仿真实验验证了多基站ISAR多目标成像和横向定标算法。
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| 关 键 词： | ISAR 多基站 多运动目标 时间-调频斜率分布 成像 横向定标 |
| 收稿时间： | 2011-01-06 |
Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling |
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| YUN Ri-sheng.Multi-Static ISAR Multiple Moving Target Imaging and Cross-Range Scaling[J].Journal of Astronautics,2012,33(1):107-112. |
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| Authors: | YUN Ri-sheng |
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| Institution: | (Center for Space Science and Applied Research，Chinese Academy of Sciences， Beijing 100190, China) |
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| Abstract: | Based on echo model of multi-static ISAR multiple moving targets,the signal parameters of multiple moving targets are estimated and separated by employing time-frequency rate distribution analysis and CLEAN method.After the signal parameters and ISAR images correspond to multiple radars are obtained,the moving parameters of each target are estimated iteratively and then the cross-range scaling of each target is implemented.Furthermore,the constraints of multi-static ISAR multiple target imaging are analyzed.The multiple-static ISAR multiple moving target imaging and cross-range scaling algorithm are verified by simulation experiments. |
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| Keywords: | ISAR Multi-static Multiple moving targets Time-frequency rate distribution Imaging Cross-range scaling |
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