Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation
Copyright © (2008) by the Society of Exploration Geophysicists All rights reserved. Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping...
| Main Authors: | , , |
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| Format: | Conference Paper |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/73673 |
| _version_ | 1848763068004171776 |
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| author | Wellington, P. Hartley, B. Kepic, Anton |
| author_facet | Wellington, P. Hartley, B. Kepic, Anton |
| author_sort | Wellington, P. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Copyright © (2008) by the Society of Exploration Geophysicists All rights reserved. Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping operators, in the least squares sense, to minimize the energy difference between the predicted multiples and the field record. Although the minimum energy assumption allows a computationally efficient adaptive subtraction, it can lead to attenuation of primary information. This abstract illustrates how a simple amplitude clipping approach can significantly improve the effectiveness of the least squares adaptive subtraction and minimize primary attenuation. |
| first_indexed | 2025-11-14T10:57:35Z |
| format | Conference Paper |
| id | curtin-20.500.11937-73673 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:57:35Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-736732019-02-19T04:14:20Z Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation Wellington, P. Hartley, B. Kepic, Anton Copyright © (2008) by the Society of Exploration Geophysicists All rights reserved. Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping operators, in the least squares sense, to minimize the energy difference between the predicted multiples and the field record. Although the minimum energy assumption allows a computationally efficient adaptive subtraction, it can lead to attenuation of primary information. This abstract illustrates how a simple amplitude clipping approach can significantly improve the effectiveness of the least squares adaptive subtraction and minimize primary attenuation. 2018 Conference Paper http://hdl.handle.net/20.500.11937/73673 restricted |
| spellingShingle | Wellington, P. Hartley, B. Kepic, Anton Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title | Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title_full | Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title_fullStr | Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title_full_unstemmed | Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title_short | Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| title_sort | application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation |
| url | http://hdl.handle.net/20.500.11937/73673 |