Seismic data processing method for data acquired using overlapping vibratory sweeps
US6519533B1 · kind B1 · utility
32Cited by
4References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2002 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Jan 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2210/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for attenuating noise in vibroseis data acquisition. In particular, according to the invention, several preferred methods are discloses that are particularly useful for attenuating noise in seismic data acquired by slip sweep vibroseis techniques. The techniques disclosed involve band-splitting in the time-frequency domain using mirror-filtering, such as a quadrature mirror filter. A noise estimate is made according to which the data is normalized and summed. The time frequency data then reconstructed and transformed back into time domain for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.