基于小波包变换的单道水上地震数据去噪方法研究  

Study of Single-channel Water Seismic Data De-noising Based on Wavelet Packet Transform

作　　者：姜文龙[1] 胡伟华[1] 裴少英[1] 

机构地区：[1]黄河勘测规划设计有限公司工程物探研究院,郑州市450003

出　　处：《勘察科学技术》2014年第5期23-25,共3页Site Investigation Science and Technology

基　　金：水利部国际先进水利科学技术计划"948"项目(201212)"河道;库区非爆炸震源工程安全检测成套关键技术引进"

摘　　要：基于小波变换的多尺度分解去噪技术是近年来发展起来的一种新技术,其在地震勘探领域中具有广泛的应用。在小波变换的基础上发展起来的小波包变换,可以更好地像小波变换分解低频一样分解高频信息,在信号的去噪方面也有着重要的用途。将小波包变换应用于噪音含量较多的浅水域单道地震数据处理中,获得的有效地震信号突出,噪音被明显压制,处理效果良好。Multi-scale decomposition de-noising based on wavelet transform is a new technology which develops in recent years, and it is widely used in seismic prospecting field. The wavelet packet transform is developing based on wavelet transform, which can decompose the high frequency information like the wavelet transform decomposing the low frequency information, and it has important application in signal de-noising. When the wavelet packet transform is used in single channel seismic data management in shal- low water area, which contains more noise, the useful signals are get prominently, the noise is suppressed obviously, the treatment effect is good.

关 键 词：小波包变换 去噪 水上地震 电火花 

分 类 号：P631.4[天文地球—地质矿产勘探]