| HFT在非平稳信号组份分析中的应用 |
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| 引用本文： | 姚红玉,刘粤钳. HFT在非平稳信号组份分析中的应用[J]. 华东师范大学学报(自然科学版), 2007, 2007(1): 119-126 |
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| 作者姓名： | 姚红玉 刘粤钳 |
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| 作者单位： | 1. 华东师范大学,教育信息技术系,上海,200062;安徽师范大学,教科院,安徽,芜湖,241000
2. 中国传媒大学,应用语言学系,北京,100024 |
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| 摘 要： | 根据半傅立叶变换(HFT)的基本原理，以遥感探测一个有限闭合圆柱为例，应用HFT分析其暂态散射响应的各组份. 实验结果表明，在高信噪比的情况下，HFT能够成功地从被测物的暂态散射响应中优化分离出早期响应的似脉冲分量和晚期的衰减正弦波分量.
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| 关 键 词： | 半傅立叶变换 矩阵束法 高斯脉冲 衰减正弦波 半傅立叶变换 矩阵束法 高斯脉冲 衰减正弦波 |
| 文章编号： | 1000-5641（2007）01-0119-08 |
| 收稿时间： | 2005-09-01 |
| 修稿时间： | 2005-09-01 |
Separation of Various Components of Nonstationary Signal Using Half Fourier Transform (Chinese) |
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| YAO Hong-yu,LIU Yue-qian. Separation of Various Components of Nonstationary Signal Using Half Fourier Transform (Chinese)[J]. Journal of East China Normal University(Natural Science), 2007, 2007(1): 119-126 |
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| Authors: | YAO Hong-yu LIU Yue-qian |
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| Affiliation: | 1. Department of Educational Technology , East China Normal University, Shanghai 200062, China; 2, School of Educational Science, Anhui Normal University, Wuhu Anhui 241000, China; 3, Department of Applied Linguistics, Communication University of China, Beijing, 100024, China |
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| Abstract: | This paper used the Half Fourier Transform to analyze various components of a non- stationary signal.By MATLAB simulation,a practical example,remote sensing a finite cylin- der,was tested to verify the proposed algorithm.The result showed that in the higher SNR,the proposed algorithm can perfectly meet our expectation:to separate impulse-like components from damped exponentials. |
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| Keywords: | half Fourier transform matrix pencil method Gaussian pulse damped sinusoid |
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