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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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多频组合胖射线旅行时层析成像方法
Keywords: 胖射线层析,菲涅耳带,多频组合,影响因子,层析核函数
Abstract:
？基于射线理论的地震波旅行时层析成像是重建地下速度分布的有效工具，然而传统的射线层析建立在无限高频近似的基础上，导致反演问题产生严重的不适定性，从而影响层析成像的效果。针对传统射线层析存在的问题，本文提出了基于第一菲涅尔带的多频率组合的胖射线层析方法。该方法通过第一菲涅尔带拓宽射线，并利用权重影响因子修改层析核函数，有效降低了反演矩阵的稀疏性，解决了射线层析的不适定性问题。同时由于多个频率的引入，在迭代反演过程中，有效地提高了层析的分辨率与精度。同时该方法不需计算射线路经，因而提高了计算效率。模型试算结果证明了本方法的有效性与稳定性。
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| [7] | 刘玉柱,董良国,李培明等.初至波菲涅尔体地震层析成像.地球物理学报,2009,52(9):2310-2320.
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|
| [9] | 刘玉柱,董良国,夏建军.初至波走时层析中的正则化方法[j].石油地球物理勘探.2007,42(6):682-685？？浏览
|
| [10] | liuyuzhu,dongliangguo,xiajianjun.regularizationmethodsinfirstarrivaltomography[j].ogp.2007,42(6):682-685？？浏览
|
| [11] | 刘玉柱,董良国.初至波层析影响因素分析[j].石油地球物理勘探.2007,42(5):544-553？？浏览
|
| [12] | liuyuzhu,dongliangguo.analysisofinfluencefactorsoffirst-breakstomography[j].ogp.2007,42(5):544-553？？浏览
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| [13] | tarantolaa.inverseproblemtheory,methodsfordatafittingandmodelparameterestimation.newyork:elsevier,1987.
|
| [14] | wurs,toksozmn.diffractiontomographyandmultisourceholographyappliedtoseismicimaging[j].geophysics.1987,52(1):11-25
|
| [15] | vascodw,petersonjeandmajerel.beyondraytomography:wavepathsandfresnel60s[j].geophysics.1995,60(6):1790-1804
|
| [16] | michelenarj,harrisjm.tomographictraveltimeinversionusingnaturalpixels[j].geophysics.1991,56(5):635-644
|
| [17] | xus,zhangy,huangt.enhancedtomographyre-solutionbyafatraytechnique.segtechnicalprogramexpandedabstracts,2006,25:3354-3357.
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| [18] | 张建中,杨国辉,林文等.fresnel层析成像并行算法研究[j].计算机研究与发展.2007,44(10):1661-1666
|
| [19] | zhangjianzhong,yangguohui,linwenetal.apa-rallelalgorithmforfresneltomography.journalofcomputerresearchanddevelopment.2007,44(10):1661-1666.
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| [20] | 赵崇进,刘玉柱,杨积忠.基于高斯束的初至波菲涅尔体地震层析成像[j].石油地球物理勘探.2012,47(3):371-378？？浏览
|
| [21] | zhaochongjin,liuyuzhu,yangjizhong.firstarrivalfresnel47tomographybasedongaussianbeam[j].ogp.2012,47(3):371-378？？浏览
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| [24] | 杜增利,施泽进,尹成等.折射初至波射线追踪方法研究[j].石油地球物理勘探.2008,43(4):401-404？？浏览
|
| [25] | duzengli,shizejin,yinchengetal.refractionfirstarrivalraytracing[j].ogp.2008,43(4):401-404？？浏览
|
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