| 基于扩展小波变换的机载SAR运动目标参数估计 |
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| 引用本文： | 李刚, 朱敏慧. 基于扩展小波变换的机载SAR运动目标参数估计[J]. 电子与信息学报, 2001, 23(11): 1154-1161. |
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| 作者姓名： | 李刚 朱敏慧 |
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| 作者单位： | 1. 北京市遥感信息研究所一室,
2. 中国科学院 |
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| 摘 要： | 该文在分析机载合成孔径雷达(SAR)运动目标回波信号频谱特点的基础上,基于扩展WVD(EWVD)变换理论提出了扩展小波变换(EWT)算法的基本思想,并针对分别利用扩展WVD变换和扩展小波变换方法进行机载SAR运动目标多普勒参数估计时的特点进行比较分析,指出基于扩展小波变换方法进行机载SAR运动目标回波信号参数估计的可行性及优越性,微机仿真实验结果验证了其结论的正确性。
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| 关 键 词： | 机载SAR 运动目标 多普勒参数估计 EWVD变换 扩展小波变换 |
| 收稿时间： | 1999-06-11 |
| 修稿时间： | 1999-06-11 |
AIRBORNE SAR MOVING TARGET PARAMETER ESTIMATION BASED ON EXTENDED WAVELET TRANSFORM |
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| Li Gang, Zhu Minhui. AIRBORNE SAR MOVING TARGET PARAMETER ESTIMATION BASED ON EXTENDED WAVELET TRANSFORM[J]. Journal of Electronics & Information Technology, 2001, 23(11): 1154-1161. |
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| Authors: | Li Gang Zhu Minhui |
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| Affiliation: | Institute of Geoscience Information Beijing 100011 China;Institute of Ecletronics Chinese Academy of Science Beijing 100080 China |
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| Abstract: | This paper presents the basic concept of Extended Wavelet Transform (EWT) algorithm based on Extended WVD (EWVD) transform theory after analyzing the spectrum characteristics of airborne SAR moving-target backscatters, and then takes a comparison and analysis on airborne SAR moving-target Doppler parameters estimation by EWVD and EWT methods respectively. The flexibility and advantage of airborne SAR moving-target Doppler parameters estimation based on EWT method are indicated and the simulating experimental results demonstrate the accuracy of our conclusion. |
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| Keywords: | Airborne SAR Moving-targets Doppler parameters estimation EWVD EWT |
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