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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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基于时频三参数小波变换的频率衰减梯度分析
Keywords: 时频分析,频率衰减梯度,三参数小波变换,非线性曲线拟合,短时傅里叶变换
Abstract:
？为了有效提高常规频率衰减梯度分析法中高频振幅谱的计算精度,提出一种基于时频三参数小波变换的频率衰减梯度分析法.该方法首先利用时频三参数小波变换计算目标信号的时间—频率域振幅谱,再采用非线性曲线拟合法计算高频段振幅谱的频率衰减系数.理论信号分析表明采用时频三参数小波变换的时频分析法提高了短时傅里叶变换的时频分辨率,并克服了常规三参数小波变换出现的能量交叠而引起的高频信号能量衰减假象.实际资料的计算结果表明,本文方法比常规方法具有更高的计算精度和测试吻合率.
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| [2] | mitchelljt,derzhin,lichmaneetal.energyabsorptionanalysis:acasestudy.segtechnicalprogramexpandedabstracts,1996,15:1785-1788.
|
| [3] | 毕研斌,龙胜祥,郭彤楼等.应用频率衰减属性预测tnb地区储层含气性[j].石油与天然气地质.2007,28(1):116-120
|
| [4] | 周长友,李瑞,杨帆等.基于小波变换的频率衰减梯度属性含气性检测.石油化工应用,2010,29(11):59-62]zhouchangyou,lirui,yangfanetal.frequencyattenuationgradientattributeofhydrocarbonpotentialdetectionbasedonwavelettransform.petrochemicalindustryapplication,2010,29(11):59-62.
|
| [5] | 邹文.基于地震资料的流体识别技术研究(博士学位论文).四川成都:成都理工大学,2008
|
| [6] | jonesdl,parkstw.ahighresolutiondata-adap-tivetime-frequencyrepresentation[j].ieeetransactionsonacoustics,speechandsignalprocessing.1990,38(12):2127-2135
|
| [7] | johnhm,kurtisdf.numericalmethodsusingmatlab.beijing:publishinghouseofelectronicsindustry,2002.
|
| [8] | biyanbin,longshengxiang,guotonglouetal.predictionofgasdistributionwithfrequencyattenuationattributeintnbarea.oil&gasgeology,2007,28(1):116-120.
|
| [9] | zouwen.fluididentificationtechniqueresearchbasedonseismicdata[d].sichuanchengdu:chengduuniversityoftechnology,2008.
|
| [10] | xiongxiaojun,hezhenhua.high-precisionfrequencyattenuationanalysisanditsapplication[j].appliedgeophysics.2011,8(4):337-343
|
| [11] | 张景业,贺振华,黄德济.地震波频率衰减梯度在油气预测中的应用.勘探地球物理进展,2010,33(3):207-211]zhangjingye,hezhenhua,huangdeji.applicationoffrequencyattenuationgradientinpredictionofgasandoilpotentials.progressinexplorationgeophysics,2010,33(3):207-211.
|
| [12] | 李楠,周波.信号处理中各种频率以及小波尺度的关系.电气电子教学学报,2008,30(6):15-17
|
| [13] | linan,zhoubo.relationsamongthedifferentfrequenciesandwaveletscaleinsignalprocessing.journalofeee,2008,30(6):15-17.
|
| [14] | 高静怀,万涛,陈文超等.三参数小波及其在地震资料分析中的应用[j].地球物理学报.2006,49(6):1802-1812
|
| [15] | 李传辉,张繁昌,印兴耀.三种线性时频分析方法的影响因素及精度分析.江汉石油学院学报,2010,32(4):239-242]lichuanhui,zhangfanchang,yingxingyao.thein-fluentialfactorsandaccuracyofthreetime-frequencyanalyses.journalofoilandgastechnology,2010,32(4):239-242.
|
| [16] | sinhas,routhps,annopdetal.spectraldecompositionofseismicdatawithcontinuous-wavelettransform.geophysics,2005,70(6):p19-p25.
|
| [17] | sinhas,routhps.instantaneousspectralattributesusingscalesincontinuous-wavelettransform.geophysics,2009,74(2):wa137-wa142.
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