发明名称 |
METHOD FOR GENERATING SPREAD SPECTRUM DRIVER SIGNALS FOR A SEISMIC VIBRATOR ARRAY USING MULTIPLE BIPHASE MODULATION OPERATION 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. |
申请公布号 |
EA017312(B1) |
申请公布日期 |
2012.11.30 |
申请号 |
EA20100001142 |
申请日期 |
2010.08.10 |
申请人 |
PGS GEOPHYSICAL AS |
发明人 |
TENGHAMN STIG, RUNE, LENNART |
分类号 |
G01V1/02 |
主分类号 |
G01V1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|