基于FM~mlet变换塔形分解的地震信号滤波

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英文篇名：Seismic signal filtering based on the FM~mlet transform 中文刊名：核电子学与探测技术 英文刊名：Nuclear Electronics & Detection Technology 作者：范延芳 ; 许朝阳 ; 范万春 ; 孙煜 英文作者：FAN Yan-fang ; XU Chao-yang ; FAN Wan-chun ; SUN Yu(Northwest Institute of Nuclear Technology ; P.O. Box 69-17 ; Xi'an of Shaanxi Prov. 710024 ; China) 中文关键词：地震信号恢复 ; FMmlet变换 ; 滤波 英文关键词：seismic signal ; FM~mlet transform ; filter 出版日期：2004-09-20 机构：西北核技术研究所,西北核技术研究所,西北核技术研究所,西北核技术研究所 西安市69信箱17分箱　710024 ,西安市69信箱17分箱　710024 ,西安市69信箱17分箱　710024 ,西安市69信箱17分箱　710024 年：2004 期：05 出版单位：核电子学与探测技术

摘要

研究了基于FMmlet变换自适应匹配投影塔形分解原理的地震信号滤波方法。该方法在不提供地震信号背景噪声统计特性的前提下,能有效地去除地震信号中的噪声和干扰,实现地震信号的滤波。分别以实验信号和实际地震信号为例进行了实验,并将实验结果与传统的带通滤波结果进行对比,证明该方法不但可以有效地恢复受干扰污染的或淹没于噪声中的真实信号,且滤波效果优于带通滤波的效果。
A new seismic signal filtering method based on the FM~mlet transform is introduced. The real seismic signal can be efficiently extracted from the noised signals by this method without knowing its statistic features. An artificial signal and a real seismic signal are used respectively in the paper. Experimental results demonstrated that the result of the new seismic signal filtering method is much better than that of the traditional band-pass filter.

引文

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