摘要
S变换是近年来发展起来的一种时频分析方法,本文首先通过设计理论模型测试S变换对非平稳信号的分辨能力,然后将S变换引入对地震资料随机噪声的压制中去,测试了S变换压制随机噪声的效果.研究表明:S变换是一种有效的时频分析方法,并可以很好地压制叠前地震资料的随机噪声.
S transformation is a time-frequency analysis method developed in recent years.In this paper we design models to test its ability to distinguish non-stationary signals,and introduce S transformation into attenuating random noise,and test the effect of S transform in attenuating random noise.The result shows that S transformation is an effective time-frequency analysis method and can work well to attenuate random noise of pre-stack seismic data.
出处
《地球物理学进展》
CSCD
北大核心
2010年第2期562-567,共6页
Progress in Geophysics
基金
黑龙江省教育厅科学技术研究项目(11511013)资助
关键词
S变换
时频分析
随机噪声
S transformation
time-frequency analysis
random noise
