| S变换时频滤波与其它滤波方法的比较 |
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| 引用本文： | 赵淑红,王璇.S变换时频滤波与其它滤波方法的比较[J].西北地震学报,2007,29(3):224-229. |
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| 作者姓名： | 赵淑红 王璇 |
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| 作者单位： | 长安大学地质工程及测绘工程学院,陕西,西安,710054 |
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| 摘 要： | 在提高信噪比时通常根据信号和噪音的差异选取不同的滤波方法。由于地震记录的复杂性,有时有效波与干扰波在视速度或频率上没有明显差异,为此本文提出一种利用S变换时频滤波的方法,并比较了该方法相对其它滤波方法在时频滤波方面的优势。
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| 关 键 词： | S变换 时频滤波 短时傅立叶变换 F-K滤波 |
| 文章编号： | 1000-0844（2007）03-0224-06 |
| 修稿时间： | 2006-10-07 |
Comparison between the Time-frequency Filtering of S Transform Method and Other Filter Method |
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| ZHAO?Shu-hong and WANG?Xuan.Comparison between the Time-frequency Filtering of S Transform Method and Other Filter Method[J].Northwestern Seismological Journal,2007,29(3):224-229. |
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| Authors: | ZHAO?Shu-hong and WANG?Xuan |
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| Abstract: | In usual different filter methods are selected according to the differences between effective signal and noise for increasing the signal-noise ratio.But for complication of seismic data,sometime the effective signal and noise have no clear difference in apparent velocity and frequency.For this problem a method using S transform to fulfill the time-frequency filtering is presented in this paper,and the advantage of S transform in time-frequency filtering is compared with other filter methods through example. |
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| Keywords: | S transform Time-frequency filtering Short-time Fourier transform F-K filtering |
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