| ISAR成像中转角估计的新方法 |
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| 引用本文： | 吕彤光,陆仲良,粟毅,李盾. ISAR成像中转角估计的新方法[J]. 电子学报, 2000, 28(6): 40-43 |
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| 作者姓名： | 吕彤光 陆仲良 粟毅 李盾 |
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| 作者单位： | 南京理工大学电子工程系,南京 210094 |
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| 基金项目： | 国家自然科学基金!(No.69682 0 1 2 ) |
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| 摘 要： | ISAR成像中,为补偿散射点距离单元走动现象和横向定标,需已知目标与雷达相对总转角.实际ISAR成像中的转角通常是未知的.本文提出采用RAT方法,在不同纵向距离单元信号的模糊平面上检测线性调频信号的调制率,从而估计得到总转角.仿真和实测数据的成像结果证明了该方法的有效性.
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| 关 键 词： | 逆合成孔径雷达(ISAR) 转角估计 Radon-ambiguity transform (RAT) 线性调频信号 |
| 收稿时间： | 1999-03-15 |
The Analysis of the Azimuth Resolution of Impulse Signal SAR |
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| LV Tong-guang,LU Zhong-liang,SU Yi,LI Dun. The Analysis of the Azimuth Resolution of Impulse Signal SAR[J]. Acta Electronica Sinica, 2000, 28(6): 40-43 |
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| Authors: | LV Tong-guang LU Zhong-liang SU Yi LI Dun |
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| Affiliation: | Dept of Electronic Eng.Nanjing University of Science & Technology,Nanjing 210094,China |
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| Abstract: | This paper analyzed the special characteristics of impulse signal SAR in the process of imaging.In condition of sending,receiving UWB signal with big accumulating angle,the formulation of azimuth resolution was deduced.At last it was proved to be correct by the simulation results. |
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| Keywords: | UWB radar impulse radar synthetic aperture radar azimuth resolution back projection |
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