| 摘要: |
| 对波动方程叠前深度偏移的成像条件和平滑算子进行了概述,推导了用平滑算子对成像条件进行平滑的公 式,给出了同一平滑函数在不同平滑参数控制下以及不同平滑函数在相同平滑参数控制下的成像结果。模型试算 结果表明:在合适的平滑参数控制下，平滑后的成像结果得到了明显改善;在相同的平滑参数控制下,Gaussian窗平 滑算子平滑后得到的成像结果要好。 |
| 关键词: 成像条件 叠前深度偏移 平滑算子 地震资料处理 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金(40474041);国家“863”专题(2006AA06Z206) ;CNPC中青年创新基金(04E7040) |
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| Application of smoothing operator in seismic prestack depth imaging |
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Li Zhen-chun, YANG Jing-Iei
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(College of Geo-Resources and Information in China University of Petroleum, Dongying 257061，China)
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| Abstract: |
| The imaging condition and smoothing operator o￡ wave equation prestack depth migration were introduced. Tlie formula used smoothing operator to smooth imaging conditon was derived. The results of the same smoothing function with different smoothing parameters and different smoothii^ functions with the same smoothing parameter were given. The model test results show that the images are improved when the smoothing parameter is appropriate. With the same smoothing parameter, Gaussian smoothing operator can get relatively good imaging result. |
| Key words: imaging condition prestack depth migration smoothing operator seismic data processing |
