| 信号时频表示的一种方法 |
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| 引用本文： | 强琳,张家田,刘贵忠,孙庆洋.信号时频表示的一种方法[J].西安石油大学学报(自然科学版),1997(4). |
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| 作者姓名： | 强琳 张家田 刘贵忠 孙庆洋 |
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| 作者单位： | 西安交通大学，西安石油学院 西安710049，西安710065 |
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| 摘 要： | 描述了一种带相位因子的时频分析方法。它基于一种可滑动的、尺度可变的高斯窗思想。这种窗的大小与频率有关,并与傅里叶频谱之间有直接对应关系。笔者对这种时频分析方法做了理论分析,并通过实验验证了该方法在时频分析方面的特点。
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| 关 键 词： | 信号 相位 频率分析 傅里叶变换/[时频分析] |
A Method of Signal Time-Frequency Representation |
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| Qiang Lin,et al.A Method of Signal Time-Frequency Representation[J].Journal of Xian Shiyou University,1997(4). |
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| Authors: | Qiang Lin |
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| Abstract: | A method of signal time-frequency representation with phase factor is introduced. It is based on a movable and changeable scale Gaussian window, whose size has something to do with the frequencies of signal, and has correspondingly something to do with Fourier frequency spectrum of signal. This paper discusses the method in mathematics, and showes its advantages in signal time-frequency analysis by examples. |
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| Keywords: | signal phase frequency analysis Fourier transform/[time-frequency analysis wavelet transform] |
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