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基于小波分频与径向道变换的联合压制面波方法（英文）.docx

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基于小波分频与径向道变换的联合压制面波方法（英文） Title:AJointSuppressionMethodforSurfaceWavesbasedonWaveletAnalysisandRadialChannelTransform Abstract: Surfacewavesareknowntocausesignificantinterferenceinvariousgeophysicalapplications,suchasseismicexplorationandgroundpenetratingradar.Thispaperproposesanoveljointsuppressionmethodforsurfacewavesthatcombineswaveletanalysisandradialchanneltransform.Theaimistoeffectivelyremovesurfacewavenoisewhilepreservingthedesiredsubsurfacedata. Introduction: Surfacewavesareunwantednoisesignalsthatcanseriouslydegradetheperformanceandqualityofgeophysicaldata.Traditionalmethodsforsurfacewavesuppressionoftensufferfromlimitations,suchaslossofusefulinformation,inadequateadaptabilitytovariousdata,andinsufficientrobustness.Toaddresstheseissues,thispaperproposesajointsuppressionmethodthatcombineswaveletanalysisandradialchanneltransform,aimingtoovercomethedrawbacksoftraditionalmethodsandimprovetheaccuracyandrobustnessofsurfacewavesuppression. Methods: 1.WaveletAnalysis: Wavelettransformisapowerfultoolforanalyzingsignalsinbothtimeandfrequencydomains.Inthismethod,theseismicdataisdecomposedintomultiplescalesusingawavelettransform.Byselectinganappropriatewaveletfunctionanddecompositionlevel,thesurfacewavecomponentscanbeseparatedfromthedesiredsubsurfacesignals.Thesurfacewavecomponentsarethensubtractedtoenhancethequalityofthesubsurfacedata. 2.RadialChannelTransform: Theradialchanneltransformisaneffectivetechniquethatcancapturetheenergydistributioncharacteristicsofseismicdata.Inthismethod,multipleradialchannelsaregeneratedaroundeachseismictrace.Theenergyofeachchanneliscalculatedandcomparedtoidentifythedominantfrequenciesassociatedwithsurfacewaves.Byanalyzingtheenergydistribution,thesurfacewavecomponentscanbeidentifiedandsuppressed. 3.JointSuppression: Theproposedmethodcombineswaveletanalysisandradialchanneltransformtojointlysuppresssurfacewaves.Thesurfacewavecomponentsidentifiedinthewaveletdomainandenergydistributionanalysisaresubtractedfromtheoriginalseismicdata.Thejointsu