基于频率及F-K域联合应用的地震波去噪技术研究  

Research on Seismic Data Noise Reduction Based on Combined Application of Frequency and F-K Domain Filter

作　　者：牛永效[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津300251

出　　处：《铁道标准设计》2017年第2期47-49,共3页Railway Standard Design

摘　　要：地震反射波勘探是铁路工程地质勘察的一种重要地球物理勘探方法,地震波数据的处理直接关系到数据的解译质量,提高信噪比是关键环节。针对单一去噪技术,难以获取高信噪比地震数据的难题,以某一在建铁路项目地裂缝勘察的地震波数据为例,详细研究各种有效波及干扰波的性质和特征,建立一种频率域滤波、声波衰减和频率-波数域(F-K)滤波联合应用的去噪技术。结果表明:该技术能有效去除和压制干扰波,增强有效波能量,去噪效果明显。Seismic reflection wave exploration is an important geophysical method for railway engineering geological investigation and the seismic data processing is directly related to data interpretation quality based greatly on the improvement of signal-to-noise ratio. In view of the difficulties in obtaining seismic data of high signal-to-noise ratio, properties and characteristics of significant wave and interference wave are studied based on the seismic wave data of a railway project from ground fissure investigation, and the de-noising technique is developed based on the combined application of frequency domain, acoustic attenuation and F-K domain filter. The results show that the technique can effectively remove andeliminate interference wave, enhance significant wave energy and reduce noise.

关 键 词：地震波 去噪 频率域滤波 声波衰减 频率波数(F-K)域滤波 

分 类 号：U212.22[交通运输工程—道路与铁道工程]