| Autor: |
F.H. Jiang, C.H. Wang, L.Q. Dong, Y.M. Zhang |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
9th Congress of the Balkan Geophysical Society. |
| ISSN: |
2214-4609 |
| DOI: |
10.3997/2214-4609.201702531 |
| Popis: |
Summary In order to mitigate low frequency energy loss caused by frequency domain based filtering methods, a ground-roll suppression approach utilizing interferometry and complex Curvelet transform (CCT) is proposed in the paper. Firstly, the ground-roll model is predicted by data cross-correlation utilizing interferometry theory. In the following step, an optimal problem is built to correct the dynamic differences between the predicted ground-roll model and the actual one in CCT domain. Finally, the ground-roll suppression dataset is recovered by subtracting the corrected model dataset from original one. We demonstrate through a field dataset that the approach can protect low frequency energy while suppressing ground-roll. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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