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Quinn, Rory, Bull, JM and Dix, JK (1998) Optimal processing of marine high-resolution seismic reflection (Chirp) data. MARINE GEOPHYSICAL RESEARCHES, 20 (1). pp. 13-20. [Journal article]
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Abstract
Chirp frequency-modulated (FM) systems offer deterministic, repeatable source-signatures for high-resolution, normal incidence marine seismic reflection data acquisition. An optimal processing sequence for uncorrelated Chirp data is presented to demonstrate the applicability of some conventional seismic reflection algorithms to high-resolution data sets, and to emphasise the importance of a known source-signature. An improvement of greater than 60dB in the signal-to-noise ratio is realised from correlating the FM reflection data with the transmitted pulse. Interpretability of ringy deconvolved data is enhanced by the calculation of instantaneous amplitudes. The signal-to-noise ratio and lateral reflector continuity are both improved by the application of predictive filters whose effectiveness are aided by the repeatability of the Chirp source.
| Item Type: | Journal article |
|---|---|
| Faculties and Schools: | Faculty of Life and Health Sciences |
| Research Institutes and Groups: | Environmental Sciences Research Institute Environmental Sciences Research Institute > Maritime Archaeology |
| ID Code: | 173 |
| Deposited By: | Dr Rory Quinn |
| Deposited On: | 03 Aug 2009 11:11 |
| Last Modified: | 15 Jun 2011 11:18 |
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