In order to achieve better seismic data denoising technology,a new algorithm is introduced in this paper:fast iterative shrinkage-thresholding algorithm(FISTA).The K-SVD dictionary is iteratively updated by FISTA and K-singular value decomposition(K-SVD).The updated K-SVD dictionary sparsely represents the seismic data and removes the smaller sparse coefficients,which suppresses the random noise in the data.Comparison among simulation data,Marmousi model seismic data and actual seismic data indicates that F...
【基金】
国家重点研发计划(2017YFC0307405)资助
【更新日期】
2018-07-20
【分类号】
P631.44
【正文快照】
2.中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000Seismic data denoising based on improved K--SVDdictionary learning methodCHENG Shi-jun1,HAN Li-guo1,YU Jiang-long2,ZHANG Feng-jiao10引言地震勘探中由于周围环境因素的影响,其采集到的地震记录往往伴随有?