发明名称 |
Attenuating noise in vibroseis data acquisition |
摘要 |
Several preferred methods are disclosed 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. |
申请公布号 |
GB2348003(A) |
申请公布日期 |
2000.09.20 |
申请号 |
GB19990006248 |
申请日期 |
1999.03.19 |
申请人 |
* GECO-PRAKLA |
发明人 |
BENJAMIN PETER * JEFFRYES |
分类号 |
G01V1/36;(IPC1-7):G01V1/36 |
主分类号 |
G01V1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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