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OALib Journal期刊
ISSN: 2333-9721
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pocs联合改进的jitter采样理论曲波域地震数据重建
Keywords: 地震数据重建,曲波变换,凸集投影(pocs),阈值模型,改进的jitter采样
Abstract:
？由于采集条件的限制及后续处理中废炮废道的剔除,使得地震数据成为不完整数据体,这将影响后续地震资料的处理及反演,因此有必要进行地震数据重建。本文结合曲波变换和凸集投影(pocs)方法对不规则地震数据进行重建:对比分析不同阈值模型对二维地震数据重建结果及收敛速度的影响,采用改进的指数阈值模型(q=0.5)和改进的jitter欠采样方法在频率域对每一有效频率切片进行二维重建,最终实现三维地震数据重建,并有效地提高了计算效率。在迭代过程中,定义了新的误差函数公式,从而在保证重建质量的同时有效地结束迭代,再次提高了计算效率。模拟数据分析和实际数据处理结果均验证了方法的有效性。
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| [14] | gaojianjun.researchonirregularseismicdatareconstruction[d].beijing:chinauniversityofpetroleum(beijing),2012.
|
| [15] | gaojianjun,chenxiaohong,lijingyeetal.irregularseismicdatareconstructionbasedonexponentialthresholdmodelofpocsmethod[j].appliedgeophysics.2010,7(3):229-238
|
| [16] | liuguochang,chenxiaohong,guozhifengetal.missingseismicdatarebuildingbyinterpolationbasedoncurvelettransform[j].ogp.2011,46(2):237-246？？浏览
|
| [17] | 张华,陈小宏.基于jitter采样和曲波变换的三维地震数据重建.地球物理学报,2013,56(5):1637-1649.
|
| [18] | zhanghua,chenxiaohong.seismicdatareconstructionbasedonjittersamplingandcurvelettransform.chinesejgeophys,2013,56(5):1637-1649.
|
| [19] | naghizadehmandsacchim.multistepautoregressivereconstructionofseismicrecords.geophysics,2007,72(6):v111-v118.
|
| [20] | 高建军,陈小宏,李景叶等.不规则地震数据的抗假频重建方法[j].石油地球物理勘探.2010,45(3):326-331？？浏览
|
| [21] | naghizadehmandsacchim.beyondaliashierarchicalscalecurveletinterpolationofregularlyandirregularlysampledseismicdata.geophysics,2010,75(6):wb189-wb202.
|
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