摘要
本文以海洋工程地质地球物理模型和我公司完成的海洋工程地震勘探数据为依托,综合分析了小波变换、EMD处理、基于EMD小波阈值去噪处理等数据处理技术对于海洋地震勘察数据处理的作用,论述了基于经验模态分解的小波阈值去噪方法在浅海地震勘探数据处理中对于压制噪声、提高信噪比和分辨率的作用。该方法对于细化地震勘探的数据成果,实现物探成果的精细化地质分层具有积极意义。
Based on offshore earthquake data collected by our company,geological and geophysical model was built to fully analyze the effect of wavelet transform,empirical mode decomposition processing and EMD wavelet threshold de-noise on offshore earthquake data processing,and discuss the wavelet threshold de-noising method based on EMD,which played an important role in the suppression of noise,the improvement of signal to noise ratio （SNR）and resolution during shallow sea seismic data processing. This method has a positive significance in refining seismic data and achieving fine layer classification based on the geophysical results.
出处
《港工技术》
2014年第6期79-85,共7页
Port Engineering Technology
关键词
海洋工程
海洋地震
数据处理
小波变换
经验模态分解
marine engineering
offshore earthquake
data processing
wavelet transform
empirical modedecomposition （EMD）
