基于压缩感知的提高地震资料分辨率实验设计  

Experiment design of improving seismic data resolution based on compressed sensing

作　　者：张军华[1] 周昊 孙小东[1] 李志娜 张凯[1] ZHANG Junhua;ZHOU Hao;SUN Xiaodong;LI Zhina;ZHANG Kai(School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)地球科学与技术学院,山东青岛266580

出　　处：《实验技术与管理》2022年第8期33-37,共5页Experimental Technology and Management

基　　金：国家自然科学基金项目(42072169);山东省教学研究项目(SDYAL18021);中国石油大学(华东)教学研究项目(ZY-202003,KC-202003)。

摘　　要：提高分辨率是地震资料处理的一个重要环节。近年来,大数据、人工智能、虚拟现实等现代信息技术在物探行业得到了飞速发展,传统反褶积、谱白化、波阻抗反演等提高分辨率手段已不能满足实际需求,课堂教学与实验教学需做相应的改进。基于此,该文以压缩感知为切入点,设计了提高地震资料分辨率实验,介绍了实验的基本原理和实验环节,分析并处理了理论模型和实际地震数据。通过实验,学生对薄互层、地震分辨率等专业知识有了深入的理解与思考,对信号稀疏表示、压缩感知采样、信号优化重构等的现代信号处理技术有了直观认识。该实验对改进教育教学形态,引导学生及时接受新技术、新方法,增强自我学习的意识,以及提高教学质量都有很好的促进作用。Improving the resolution is an important part of seismic data processing. In recent years, modern information technologies such as big data, artificial intelligence and virtual reality have been developed rapidly in the geophysical exploration industry. Traditional resolution enhancement methods such as deconvolution, spectral whitening and wave impedance inversion can no longer meet the practical needs, classroom teaching and experimental teaching need to be improved accordingly. Based on this, this paper takes compressed sensing as the breakthrough point to design an experiment to improve the resolution of seismic data, introduces the basic principles and experimental steps of the experiment, and analyzes and processes the theoretical model and actual seismic data. Through the experiment, students have an in-depth understanding and consideration of the professional knowledge of thin bed and seismic resolution, and have an intuitive understanding of modern signal processing techniques such as signal sparse representation, compressive sensing sampling, and signal optimal reconstruction. This experiment has a good promotion effect on improving the teaching form, guiding students to accept new technologies and methods in time, enhancing self-learning consciousness and improving teaching quality.

关 键 词：地震资料 薄层 压缩感知 分辨率 综合性实验 

分 类 号：P315.2[天文地球—地震学] TN911.4[天文地球—固体地球物理学]