Predominant frequency band operator extrapolation to improve noise attenuation in f-x domain
XIONG Ding-yu1,2, QIAN Zhong-ping2, ZHAO Bo2, ZHOU Ya-tong2, HE Zhen-hua1
1 School of Information Engineering,Chengdu University of Technology,Chengdu,Sichuan,610059,China;
2 Research & Development Center,BGP Inc,Zhuozhou,Hebei,072751,China
Abstract：Usually f-x prediction filtering seriously depends on S/N of original seismic data.A predominant frequency-band operator extrapolation for noise attenuation improvement in f-x domain is proposed in the work.In order to get dependable prediction operators of the lower S/N frequency band,the method,utilizing the relation of close frequency band prediction operators,predicts the lower S/N frequency band by prediction operators of high S/N frequency band.In this instance,the precision of the prediction operator in the lower S/N frequency band is guaranteed.Consequently,high frequency effective signal in the lower S/N frequency band is protected.
