摘要
高频重建是指依靠信号处理技术,在奈奎斯特频率内,提高地震数据的主频或带宽,进而达到提高地震资料分辨率作用.它是提高地震资料分辨率的直接方法,在地震数据处理和解释中多有应用.本文对比介绍了包括基于复倒谱法、自动增益控制法以及谐波外推三种高频重建方法,并着重介绍了谐波外推法,采用模型和实际数据,对三种方法的处理效果进行了分析和对比.
High-frequency reconstruction refers to increasing the main frequency or bandwidth of seismic data within the Nyquist frequency by means of signal processing technology, thereby achieving the effect of improving the resolution of seismic data. It is a direct method to improve the resolution of seismic data, and it has many applications in seismic data processing and interpretation. This article compares and introduces three high-frequency reconstruction methods including complex cepstrum method, automatic gain control method and harmonic extrapolation, and emphasizes the harmonic extrapolation method, using the model and actual data, the processing effects of the three methods are analyzed and compared.
作者
郑迎冬
闫浩飞
刘国峰
ZHENG YingDong;YAN HaoFei;LIU GuoFeng(China University of Geosciences,Beijing 100083,China;China Aero Geophysical Survey and Remote Sensing Center for Natural Resources,Beijing 100083,China)
出处
《地球物理学进展》
CSCD
北大核心
2021年第6期2641-2653,共13页
Progress in Geophysics
基金
国家自然科学基金项目资助(42074131)资助。
关键词
地震分辨率
高频重建
谐波外推法
基追踪反演法
Seismic resolution
High frequency reconstruction
Harmonic extrapolation method
Basis pursuit inversion method
