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| 基于时频分析的ISAR成像 | |
| 引用本文： | 彭军,王光明,刘丹,袁昊天.基于时频分析的ISAR成像[J].航天电子对抗,2008,24(2):31-33. |
| 作者姓名： | 彭军 王光明 刘丹 袁昊天 |
| 作者单位： | 1. 空军工程大学导弹学院,陕西,三原,713800;中国航天科工集团公司二院23所,北京,100854 2. 空军工程大学导弹学院,陕西,三原,713800 3. 中国航天科工集团公司二院23所,北京,100854 |
| 摘 要： | 传统的逆合成孔径雷达(ISAR)成像算法用傅里叶变换进行频谱分析,会导致对机动目标的成像模糊.应用短时傅立叶变换(STFT)、魏格纳分布(WVD)、平滑伪魏格纳分布(SPWVD)等几种时频分析方法对机动目标进行瞬时成像,仿真和实验结果表明,应用该方法能得到清晰的目标的距离-瞬时多普勒像. |
| 关 键 词： | 逆合成孔径雷达 机动目标 时频分析 瞬时像 |
ISAR imaging based on time-frequency analysis |
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| Peng Jun,Wang Guangming,Liu Dan,Yuan Haotian.ISAR imaging based on time-frequency analysis[J].Aerospace Electronic Warfare,2008,24(2):31-33. | |
| Authors: | Peng Jun Wang Guangming Liu Dan Yuan Haotian |
| Institution: | Peng Jun1,2,Wang Guangming1,Liu Dan2,Yuan Haotian2(1.Missile Institute,AFEU,Sanyuan 713800,Shanxi,China,2.No.23 Research Instituteof the Second Academy of CASIC,Beijing 100854,China) |
| Abstract: | Conventional ISAR imaging uses the Fourier transform to retrieve Doppler information.Due to the complex motion of a target,the image is blurred.The application of joint time-frequency transform,including STFT,WVD and SPWVD,in ISAR temporal imaging for maneuvering targets is studied.Simulation data and real data prove that the method can get good radar temporal images for maneuvering targets. |
| Keywords: | ISAR maneuvering target time-frequency analysis temporal ISAR image |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |