| 小波变换在频率步进雷达-维距离像中的应用 |
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| 引用本文： | 张家昌 刘吉 嵇碧波. 小波变换在频率步进雷达-维距离像中的应用[J]. 电子测量技术, 2007, 30(3): 32-33 |
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| 作者姓名： | 张家昌 刘吉 嵇碧波 |
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| 作者单位： | 海军工程大学应用物理系,武汉430033 |
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| 摘 要： | 由于小波变换是一种局部细化分析，它能对短时信号做比较精细的分析，在高分辨、超宽带雷达信号处理方面具有广泛的应用前景。在频率步进雷达一维距离成像技术中，经典的傅里叶变换算法受到距离分辨率的限制，并且存在较高的副瓣电平。针对这一问题，本文提出将连续小波变换算法用于频率步进雷达的一维距离成像。该方法在保持高距离分辨率的同时，可有效降低回波信号的副瓣电平。
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| 关 键 词： | 小波变换 频率步进雷达 一维距离像 |
Application of wavelet transform in stepped frequency radar''''s range profile |
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| Zhang Jiachang, Liu Ji ,Ji Bibo. Application of wavelet transform in stepped frequency radar''''s range profile[J]. Electronic Measurement Technology, 2007, 30(3): 32-33 |
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| Authors: | Zhang Jiachang Liu Ji Ji Bibo |
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| Affiliation: | College of Physics,Naval University of Engineering,Wuhan 430033 |
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| Abstract: | The wavelet transform is a kind of part analysis,which can do the more fine analysis of the short time signal,and has the extensively applied foreground in the aspects of high resolution and ultra-wideband radar signal processing.Based on stepped frequency radar's range profile,the Fourier transform technique is limited by the range resolution and will result in high sub-lobe level.In order to solve this problem,the continuous wavelet transform was presented for stepped frequency radar range profile.The method is of high range resolution ability and can reduce effectively echoes' sub-lobe level. |
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| Keywords: | wavelet transform stepped frequency radar range profile |
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