| 基于散射中心模型的雷达目标成像研究 |
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| 引用本文： | 沈明华,付强,夏凌云.基于散射中心模型的雷达目标成像研究[J].现代雷达,2007,29(4):64-67. |
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| 作者姓名： | 沈明华 付强 夏凌云 |
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| 作者单位： | 1. 国防科技大学电子科学与工程学院,长沙,410073
2. 湖南大学设计艺术学院,长沙,410082 |
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| 摘 要： | 雷达目标数据是验证和评估各种算法的基础,数据仿真由于不受条件和环境制约,是获取数据的重要途径,开展数据仿真研究具有重要的现实意义。研究了一种基于多散射中心模型的目标成像方法,仿真获得了坦克目标的一维距离像和二维SAR像,针对传统成像方法分辨率低的问题,将基于最小二乘—旋转不变技术的参数估计技术应用于雷达目标一、二维成像中,大大改善了雷达图像的分辨率和成像质量。
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| 关 键 词： | 散射中心 距离像 合成孔径雷达 基于旋转不变技术的信号参数估计 |
| 修稿时间： | 2006-12-04 |
Research on Radar Imaging Based on Scattering Center Model |
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| SHEN Ming-hua,FU Qiang,XIA Ling-yun.Research on Radar Imaging Based on Scattering Center Model[J].Modern Radar,2007,29(4):64-67. |
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| Authors: | SHEN Ming-hua FU Qiang XIA Ling-yun |
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| Affiliation: | 1. School of Electronic Science and Engineering, NUDT, Changsha 410073, China;2. School of Design and Artist of Hunan University, Changsha 410082, China |
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| Abstract: | Radar target data are basic for validating and assessing the algorithms.Data simulation,which is not easily affected by environments and conditions,is an important way to acquire the data and has great realistic meaning.One target imaging method based on multi-scattering centers model is proposed,and the 1-D range profiles and 2-D SAR images of tank are simulated.To overcome the limited resolution of traditional method,TLS-ESPIRT is applied to radar imaging and good imaging quality and high resolution are achieved. |
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| Keywords: | scattering center range profile SAR ESPRIT |
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