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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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自适应分段的时变子波估计方法
Keywords: 自适应分段,时变子波估计,自适应分子分解,非平稳地震记录,时窗函数
Abstract:
？针对目前时变子波估计中忽略地震记录的非平稳特性导致子波估计不准的问题,提出了一种基于自适应分段的时变子波估计方法.根据自适应分子分解法基本原理,自适应分段以二次谱法替代原有的多项式法拟合子波振幅谱,有效提高了自适应分子窗的寻优精度;采用使时变子波振幅谱相似度最大的方法确定最优的时窗函数分段,实现自适应分子窗的合理划分,进而以傅里叶反变换实现时变子波估计.通过数据仿真和实际地震数据处理等验证了该方法在子波估计中的有效性和适用性.
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| [14] | liangguanghe.thetime-variantseismicwaveletandthepeg-legmultiple.gpp,1997,36(3):18-27.
|
| [15] | 彭才,朱仕军,黄中玉等.基于动态褶积模型的动态子波估计[j].石油物探.2007,46(4):324-328
|
| [16] | pengcai,zhushijun,huangzhongyuetal.dynamicwaveletestimationbasedonthedynamicconvolutionmodel.gpp,2007,46(4):324-328.
|
| [17] | 彭才,曾涛,常智等.混合相位动态子波估计[j].油气地球物理.2008,6(1):21-24
|
| [18] | pengcai,zengtao,changzhietal.estimationofmixed-phasenonstationarywavelet.petroleumgeophysics,2008,6(1):21-24.
|
| [19] | 冯晅,刘财,杨宝俊等.分时窗提取地震子波及在合成地震记录中的应用.地球物理学进展,2002,17(1):71-77
|
| [20] | fengxuan,liucai,yangbaojunetal.theextractivemethodofseismicwaveletindifferenttimewindowandtheapplicationinsyntheticseismogram.progressingeophysics,2002,17(1):71-77.
|
| [21] | tangbowen,zhaobo,wuyanhuietal.anewwaytorealizespectralmodelingdeconvolution.ogp,2010,45(s1):66-70.
|
| [22] | 李鲲鹏,张衍达,张学工等.基于谱模拟技术的混合相位地震子波估计方法.石油物探,2001,40(2):21-28
|
| [23] | likunpeng,zhangyanda,zhangxuegongetal.themixed-phasewaveletestimatemethodbasedonspectralmodeling.gpp,2001,40(2):21-28.
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