| 基于改进包络相关法的ISAR成像包络对齐 |
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| 引用本文： | 李彧晟,刘爱芳,朱晓华.基于改进包络相关法的ISAR成像包络对齐[J].南京理工大学学报(自然科学版),2007,31(2):184-186,228. |
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| 作者姓名： | 李彧晟 刘爱芳 朱晓华 |
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| 作者单位： | 1. 南京理工大学,电子工程与光电技术学院,江苏,南京,210094
2. 南京电子技术研究所,江苏,南京,210013 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对现有包络对齐方法存在对齐精度较低的缺点,该文在包络相关法的基础上,利用Fourier变换的频域移位性质,提出了改进的包络相关法.该方法在常规包络相关法的基础上进行几次迭代,显著地提高了包络对齐的精度.仿真数据和外场实测数据的处理结果都表明,该文方法能显著改善逆合成孔径雷达(ISAR)的成像质量,且运算量增加不多.
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| 关 键 词： | 逆合成孔径雷达 运动补偿 包络对齐 相关函数 改进 包络对齐 相关法 ISAR 成像质量 Method Correlation Envelope Improved Based Alignment 运算量 逆合成孔径雷达 改善 处理结果 实测数据 仿真数据 对齐精度 迭代 性质 |
| 文章编号： | 1005-9830（2007）02-0184-03 |
| 收稿时间： | 2005-12-27 |
| 修稿时间： | 2007-03-16 |
ISAR Range Alignment Based on Improved Envelope Correlation Method |
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| LI Yu-sheng,LIU Ai-fang,ZHU Xiao-hua.ISAR Range Alignment Based on Improved Envelope Correlation Method[J].Journal of Nanjing University of Science and Technology(Nature Science),2007,31(2):184-186,228. |
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| Authors: | LI Yu-sheng LIU Ai-fang ZHU Xiao-hua |
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| Abstract: | In view of the limitation of the accuracy of all the existing range alignment methods,an improved envelope correlation method is proposed based on the frequency shifting property of Fourier transform.The computer simulation data and real ISAR(inverse synthetic aperture radar) data are used to demonstrate its performance.The results show that the proposed method can improve the imaging quality of ISAR significantly at the cost of not too much additional computation load. |
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| Keywords: | inverse synthetic aperture radar motion compensation range alignment correlation function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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