OALib Journal期刊
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小波域爬山拟合法消除面波
Keywords: 消除面波,小波域,爬山法
Abstract:
?针对现行面波消除技术中傅氏变换的负作用、小波变换去噪中阈值不易准确求取及呈拟双曲线面波顶点及其局部区域面波无法消除问题,提出小波域爬山拟合法消除面波技术。该项技术利用经小波变换后的小波系数上面波特征更为突出的特点,采用爬山法搜索相邻道的相似波形,并求其均值,若该均值满足给定的三个面波判别准则,则从原始小波系数中减去,最后通过重构得到去除面波的记录。理论模型及实际资料处理结果表明:该方法克服了现有消除面波技术中存在的缺点,达到了较好的面波消除效果。
References
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[6] | saatcilarrandnezihicanitezn.amethodofgroundrollelimination[j].geophysics.1988,53(7):894-902
|
[7] | 刘法启,张关泉.小波变换与f-k算法在滤波中的应用.石油地球物理勘探,1996,31(6);782-791liufaqiandzhanguuanquan.applicationofwavclcttransformandf-kalgorithminfiltering.oup,1996,31(6):782-791
|
[8] | 罗国安,杜世通.小波变换及信号重建在压制面波中的应用.石油地球物理勘探,1996,31(3);337-349luouuoan;dushitong.applicationofwavclcttransformandsignalreconstructioninsurfacewaveelimination.0gp,1996,31(3):337-349
|
[9] | 李卫忠,张明振,土成礼等.压制面波的波场分离方法.石油地球物理勘探,1998,33(5);679-690liwcizhong,zhangmingzhcn,wangchcnglictal.wavefieldseparationmethodforsuppressingsurfacewave.ogp,1998,33(6):679-690
|
[10] | zhangrongfcng,tradd,ulrychtctal.wavclcttransformbased,noiseattenuation.integratedcom-puter-aidedengineering,2005,12(1):91-98
|
[11] | 陈文超,高静怀,包乾宗.基于连续小波变换的自适应面波压制方法.地球物理学报,2009,52(11);285-2861chcnwcnchao,uaojinghuai,baoqianzong.adap-tiveattenuationofgroundrollviacontinuouswavclettransform.chinesejournalofgeophysics,2009,52(11);285-2861
|
[12] | 夏洪瑞等.均值加权消除相干干扰.石油物探,2000,39(2):77-82xiahongruietal.removingcoherentdisturbancebymeanvalueweighting.gpp,2000,39(2):77-82
|
[13] | 夏洪瑞,朱勇,周开明.小波变换及其在去噪中的应用[j].石油地球物理勘探.1994,29(3):274-285??浏览
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