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小波变换去噪在隧道掌子面前方地质预报中的应用
APPLICATION OF WAVELET TRANSFORM TO ELIMINATE THE NOISE IN FRONT OF TUNNEL FACE IN GEOLOGIC PREFIGURATION
【摘要】 高频地震反射波法能有效地进行隧道掌子面前方地质预报。为提高信号的信噪比 ,在傅立叶变换的基础上 ,引进小波变换理论 ,在实践中取得了较好的地质效果
【Abstract】 The result states clearly that the seismic reflection method of high frequency can effectively apply to geologic prefiguration in tunnel.In order to improve the signal resolution,based on the Fourier transform,the wavelet transform theory is recommended.Better geological result has been obtained in practice.
【关键词】 小波变换;
高频地震反射法;
地质预报;
隧道掌子面;
【Key words】 wavelet transform; seismic reflection method of high frequency; geologic prefiguration; tunnel face;
【Key words】 wavelet transform; seismic reflection method of high frequency; geologic prefiguration; tunnel face;
- 【文献出处】 勘察科学技术 ,Site Investigation Science and Technology , 编辑部邮箱 ,2001年04期
- 【分类号】U455
- 【被引频次】2
- 【下载频次】63