国际地震动态Issue(10)：22-25,4.DOI:10.3969/j.issn.0235-4975.2016.10.005
S变换在地动噪声互相关叠加中的初步尝试
Preliminary application of S-transform in denoising ambient seismic noise cross correlations
摘要
Abstract
Seismic ambient noise cross correlation is a new technique developed in recent years.surface wave′s Green′s function can be retrieved from stacking of long time waveform cross correlations,and this method promote the research of underground velocity structure. In order to increase signal to noise ratio,traditional method require stacking of long time waveform cross correlation.This research try to apply S transform to increase stack efficien-cy.Coherent signals are promoted by S transform and uncoherent ones are reduced.Prelimi-nary results show this technique is useful in promoting signal to noise ratio in processing longtime ambient noise cross correlation stacking.关键词
叠加/S变换/噪声互相关Key words
stack/S-transform/ambient noise cross correlation分类
天文与地球科学引用本文复制引用
杨志高,张雪梅,史海霞..S变换在地动噪声互相关叠加中的初步尝试[J].国际地震动态,2016,(10):22-25,4.基金项目
国家自然科学基金面上项目41274062资助。 （）
