海洋环境噪声垂直相关与声场的类比关系-郭新毅

30320116TeehniealAeoustiesVol.30,No.3PtZJun.,2011,,,(100190):KuPermanIngellito,,:;;:0427.5:ASimilarityRelationbetweenOeeanAmbientNoiseVertiealCorrelationandAcousticsFieldGUOXinyi,LlFan,MALi,CHENYaongLaboratoofUnderwatercousticsEnvionmenrituteofeoustics,CheseAeadeFofscienee.BeingIOOI0,ChinaAbstract:ThisPaperintrodueesafunetionofeorrelationbetweentwohydroPhones,basingontheKuPermanIngenitooeeanamblentnoisemodel.There15asimilarityinformbetweenthecorrelationfunetionandthePressurefieldfromaPointsoureetoareeeiver.Thus,theeorrelationfunetioneanrePlaeeaetualaeousticfieldtoresearchamvalstruetureofproPagation.InthisPaper,thenoiseinterfereneePatterncanbeobtainedfrolnerosssPectraldensityofvertieallinearray.TherearesomeanalysesaboutPhysiealsignifieaneeofnoiseinterfereneebasingoneomParedsimulationandexPerienee.ThismethodeanbeusedtoresearchlayeredseaflooreonsideringthearrivaltimestrUetureofeaehProPagationroute.Keywords:oeeanambientnoise:erosssPeetraldensity:layeredseabed1,[l31M,,l4],,,2,,1/.{.(z2,rz)1Fig.lLOcationofnoisesourcesandreeeivers[5],qZke(,,z,,22)-:20l0525;:2010605:(1979),,,,,:,guox[[e-mail](,l,(,2,)h0(krR(,,c()z!z:,k,,k=/c,c,q,g,R=rl3:l,z,z:g:,z,,22),p(,R,z,,22)fg(k;,z,,22(k;R)kdk:2,,C()C(,,,2(3)z:z:,21z:32,16,1.5m,7.76m,3026m,34m,0.lm,1500s,,44.120078,6000HZ;,13(a),3(b),16,1.5m,7.76m,34m,6ƒ0500550..223ƒE„480150015201540(s)(a)(b)3Fig3SoundspeedProfile,veealarrayloeationinexPerunentsea4.28.75kill,260340,55,605(ASSA),,e,(c)(d)2F192TimedomainerossspeetraldensityoffoursimPlewaveguides2,,,(c)(d)1rcrl(*)(4)rcorl,,rcorl=0.9867,20111Table.1SeoPesandresultsofgeoacoustiesPaletersusinginversionscm,dB/m156017001649.421.91.83810.90499750.0019.79”0--n,..14.3,,,,,4006007000015Fig.5TimedomainofvertiealeortelationinloeationoftoPhydroPhone5,,,4F19Noisefieldvertiealeorrelation4,5,,0.0,0.03,,,0.0245,:1]M.J.Buckingham.Atheoretiealmodelofambientnoiseinalow1055shallowwaterehannel.J.Aeoust.Soc.Am.,1980,67(4):11861192.[2]e.H.Hamson.NoisedireetionalityforsurfaeesoureeinrangedePendentenvironments.J.Aeoust.Soe.Am.,1997,102(5):26552663.3WA.KupermanandF.Ingenito.spatialeorrelationofsurfaeegeneratednoiseinashallowoeeanehannel.J.Aeoust.Soe.Am.,1980,67(6):19881996.[4MartinSiderius,ChrisH.Harnson,MiehaelB.porter.APassivefathometerteehniqueforimngseabedlayeringusingambientnoise.J.Aeoust.Soe.Aln.,2006,120(3):13151323.[5]F.B.Jensen,W.A.KuPerman,M.B.Porter,andHSehmidt.ComPutatlonaloeeanAeousties.NewYork:AmerieanInstltuteofPsieshie.,1994.