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应用地球物理  2016, Vol. 13 Issue (3): 480-490    DOI: 10.1007/s11770-016-0555-z
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基于染色算法的宽频带地震照明及分辨率分析
陈波1,3,贾晓峰1,谢小碧2
1. 中国科学技术大学地球和空间科学学院地震与地球内部物理实验室,合肥 230026
2. 加州大学圣克鲁斯地球物理及行星物理研究所,美国加州 95064
3. 地球科学与地质工程学院,中山大学,广州 510275
Broadband seismic illumination and resolution analyses based on staining algorithm
Chen Bo1,3, Jia Xiao-Feng1, and Xie Xiao-Bi2
1. University of Science and Technology of China, School of Earth and Space Sciences, Laboratory of Seismology and Physics of Earth’s Interior, Hefei Anhui 230026, China.
2. Institute of Geophysics and Planetary Physics, University of California at Santa Cruz, CA 95064, U.S.A.
3. School of Earth Science and Geological Engineering, Sun Yat-sen University, Guangzhou 510275, China.
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摘要 偏移成像是将由地下目标产生的地震数据归位到反射界面从而产生地下结构的像。但由于受到采集系统孔径、复杂上覆介质和成像目标倾角等因素的影响,成像结果常常是地下结构的畸变了的像。地震照明和分辨率分析为上述因素对地震成像结果的影响提供了定量的描述方法。点弥散函数中包含地震照明和分辨率分析的全部信息。染色算法建立地下某一特定结构与地震波场和地震数据之间的对应关系。本文利用染色算法计算点弥散函数并进一步获得角度域照明信息,同时通过点弥散函数与原始成像结果反卷积的方法对成像结果予以校正。展示了SEG盐丘模型的相关计算结果。染色算法为点弥散函数的计算及进行宽频带地震照明与分辨率分析提供了一种高效的计算工具。
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关键词染色算法   点弥散函数   采集倾角响应   成像分辨率     
Abstract: 偏移成像是将由地下目标产生的地震数据归位到反射界面从而产生地下结构的像。但由于受到采集系统孔径、复杂上覆介质和成像目标倾角等因素的影响,成像结果常常是地下结构的畸变了的像。地震照明和分辨率分析为上述因素对地震成像结果的影响提供了定量的描述方法。点弥散函数中包含地震照明和分辨率分析的全部信息。染色算法建立地下某一特定结构与地震波场和地震数据之间的对应关系。本文利用染色算法计算点弥散函数并进一步获得角度域照明信息,同时通过点弥散函数与原始成像结果反卷积的方法对成像结果予以校正。展示了SEG盐丘模型的相关计算结果。染色算法为点弥散函数的计算及进行宽频带地震照明与分辨率分析提供了一种高效的计算工具。
Key words染色算法   点弥散函数   采集倾角响应   成像分辨率   
收稿日期: 2016-04-07;
基金资助:

本研究由国家自然科学基金(编号:41374006和41274117)资助。

引用本文:   
. 基于染色算法的宽频带地震照明及分辨率分析[J]. 应用地球物理, 2016, 13(3): 480-490.
. Broadband seismic illumination and resolution analyses based on staining algorithm[J]. APPLIED GEOPHYSICS, 2016, 13(3): 480-490.
 
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