发明名称 |
Method for generating spread spectrum driver signals for a seismic vibrator array using multiple biphase modulation operations in each driver signal chip |
摘要 |
A method for generating seismic energy for subsurface surveying include operating a first seismic vibrator above an area of the subsurface to be surveyed and operating at least a second seismic vibrator above the area substantially contemporaneously with the operating the first seismic vibrator. The first and the second vibrators each have a different selected frequency response. The first and second vibrators each is operated by a same direct sequence spread spectrum signal, wherein a different number of modulation operations for each logical value in the direct sequence spread spectrum signal is selected for each vibrator.
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申请公布号 |
US2011038225(A1) |
申请公布日期 |
2011.02.17 |
申请号 |
US20090462954 |
申请日期 |
2009.08.12 |
申请人 |
TENGHAMN STIG RUNE LENNART |
发明人 |
TENGHAMN STIG RUNE LENNART |
分类号 |
G01V1/38 |
主分类号 |
G01V1/38 |
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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