System and method for correction of receiver clock drift
US10996360B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Dec 5, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Apr 14, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V2200/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
According to one embodiment, there is provided a method of correcting recorded seismic data where each receiver clock is potentially inaccurate. Since the seismic wave field is not random, and contains coherent events that are recorded by all receivers in a local area, it is possible to estimate the differences in the time reference by comparing the recordings of different receivers in a local area. With no external time reference, time signal, or pilot trace, an entire seismic data itself can be used to determine how each receiver's clock is drifting from true time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.