发明名称 |
NOISE SUPPRESSION DURING SEISMIC EXPLORATION |
摘要 |
The system for suppressing an ambient noise signal which comtaminates a desired signal includes a noise pickup detector for detecting the ambient noise signal. A noise discriminator processes the detected noise signal into noise data. A reference noise generator converts the noise data into a reference noise signal. The noise generator automatically adjusts the reference noise signal to correspond with changes in the noise signal as it is being detected. A filter filters the reference noise signal into an error signal which is adapted to remove the noise signal from the contaminated signal. A cross-correlator cross-correlates the contaminated signal with the reference noise signal and adjusts the filter to produce the required error signal. |
申请公布号 |
AU7120887(A) |
申请公布日期 |
1987.09.28 |
申请号 |
AU19870071208 |
申请日期 |
1987.02.11 |
申请人 |
INPUT/OUTPUT, INC., |
发明人 |
MICHAEL LEE ABRAMS;CHARLES GEOFFREY RICE;PAUL E. CARROLL;ROY WILSON JAMES III |
分类号 |
G01V1/28;G01V1/36 |
主分类号 |
G01V1/28 |
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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