| 分数傅立叶变换在信号处理中的应用研究 |
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| 引用本文： | 刘粤钳,姚红玉. 分数傅立叶变换在信号处理中的应用研究[J]. 数值计算与计算机应用, 2007, 28(3): 198-214 |
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| 作者姓名： | 刘粤钳 姚红玉 |
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| 作者单位： | 1. 中国传媒大学应用语言学系,北京,100024
2. 安徽师范大学教科院,安徽芜湖,241000 |
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| 摘 要： | 本文系统论述了分数傅立叶变换在信号处理中的两个典型应用:信号滤波和信号分离;提出了分数傅立叶滤波器的设计思想和用分数傅立叶变换的特殊形式半傅立叶变换实现信号的分离的算法实现.通过MATLAB仿真实验证实:分数傅立叶滤波的效果明显优于傅立叶滤波;半傅立叶变换可以有效地从遥感探测早期响应的减幅正弦波的衰减指数中分离出似脉冲分量,进而去确定被探测物体的固有谐振频率.
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| 关 键 词： | 分数傅立叶变换 半傅立叶变换 信号处理 |
| 修稿时间： | 2005-11-02 |
A STUDY OF APPLYING FrFT TO SIGNAL PROCESSING |
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| Liu Yueqian,Yao Hongyu. A STUDY OF APPLYING FrFT TO SIGNAL PROCESSING[J]. Journal on Numerical Methods and Computer Applications, 2007, 28(3): 198-214 |
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| Authors: | Liu Yueqian Yao Hongyu |
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| Abstract: | In this paper,two basic applications of FrFT(Fractional Fourier Transform)to signal processing,which is filtering and separating,has been discussed in detail.The Designing of FrFT-based filter was brought forward, explained, and emulated as well as using HFT(Half Fourier Transform)to separate signal's various components. |
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| Keywords: | FrFT(Fractional Fourier Transform) HFT(Half Fourier Transform) Signal Processing |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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