Spatial correlation analysis of sea-bottom backscattering

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摘要 Theprincipleofthespatialcorrelationcharacteristicsofsea-bottombackscatteringwasexpounded.TheKirchhoffmodelisintroducedtosimulatesea-bottombackscatteringandthespatialcorrelationiscalculated.Somesedimentcharacteristicparameters,suchastheratioofsedimentmassdensitytowatermassdensity,theratioofsedimentsoundspeedtowatersoundspeed,theattenuationcoefficientofsoundwaves,thestrengthandexponentofseabottominterfaceroughnessspectrum,areconsideredwhilesimulatingandtheirinfluencesonspatialcorrelationareanalyzed.Byestablishingtheexpressionsofthesedimentcharacteristicparameterswiththelogarithmicsedimentgrainsize,thevariationtendencyofthespatialcorrelationversusthelogarithmicsedimentgrainsizeisobtained.Thewidthofthemajorlobeofthespatialcorrelationfunctionnarrowsasthelogarithmicsedimentgrainsizeincreases.Thecomparisonsbetweensimulateddataandin-situdatacollectedinOctober2007haveproventhattheirspatialcorrelationfunctionwaveformsagreewellunderthesamesedimentcharacteristics.
机构地区 不详
出处 《声学学报:英文版》 2012年3期
出版日期 2012年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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