Process for cancelling stationary sinusoidal noise in seismic data
This patent describes a method of removing stationary sinusoidal noise corrupting a seismic data trace from the trace. It comprises determining the precise frequency F{sub 0} of the stationary sinusoidal noise; computing a reference sinusoidal trace R of frequency F{sub 0}; designing a filter F for shaping the reference sinusoidal trace to correspond precisely to the sinusoidal noise corrupting the data, wherein the amplitude and phase of the reference trace are adjusted to precisely match those of the sinusoidal corrupting the data trace; convolving the filter F thus designed with the reference trace to yield a noise estimate R{prime}; and subtracting the noise estimate R{prime} from the data trace.
- Assignee:
- Mobil Oil Corp., Fairfax, VA (United States)
- Patent Number(s):
- US 5051963; A
- Application Number:
- PPN: US 7-550006
- OSTI ID:
- 5584137
- Country of Publication:
- United States
- Language:
- English
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