| τ-p变换去除金属矿地震资料中的线性干扰 |
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| 引用本文： | 孙明,林君.τ-p变换去除金属矿地震资料中的线性干扰[J].物探与化探,2001,25(6):432-436. |
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| 作者姓名： | 孙明 林君 |
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| 作者单位： | 吉林大学国土资源部现代地球物理仪器开放研究实验室，吉林长春 130026 |
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| 基金项目： | 国家重点科技项目(攻关)复杂条件下固体矿产地震勘探技术与方法(No.96-914-04-01)资助项目 |
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| 摘 要： | 金属矿地震勘探资料中通常含有多种不同类型的噪声,有效地消除这些噪声,提高地震信号的信噪比是地震数据处理的主要内容之一。二维滤波(F K滤波)是消除低速干扰的一种有效手段,它可以消除视速度较低的面波及其它干扰波,但它只适用于地层倾角较缓的地区。对于复杂条件下的金属矿效果不佳。经过多次实验,用τ-p法压制线性干扰,效果显著。
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| 关 键 词： | τ-p变换 F-K滤波 去噪 信噪比 |
| 文章编号： | 1000-8918(2001)06-0432-05 |
| 收稿时间： | 2001-06-11 |
| 修稿时间： | 2001-08-02 |
THE APPLICATION OF τ-p TRANSFORM TO NOISE ELIMINATION IN BASE METAL SEISMIC DATA |
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| SUN Ming,LIN jun.THE APPLICATION OF τ-p TRANSFORM TO NOISE ELIMINATION IN BASE METAL SEISMIC DATA[J].Geophysical and Geochemical Exploration,2001,25(6):432-436. |
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| Authors: | SUN Ming LIN jun |
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| Institution: | Open Lab of Advanced Geophysical Instrumentation, Jilin University, Jilin Univercity, Changchun 130026, china |
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| Abstract: | Usually there are different sorts of noises in the data obtained from base metal seismic exploration. It's one of our main tasks to eliminate noises effectively and improve signal noise ratio in seismic data processing. F-K filtering proves to be an effective tool, which can eliminate such low velocity noise waves as surface wave and sound wave in flat geological structure, but does not fit the steeply dipping interface. Repeated experiments show that the τ-p method is much better than F-K filtering in linear noise suppression. |
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| Keywords: | τ-p transform F-K filtering noise elimination signal to noise ratio(S/N) |
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