摘要
海底电缆产波水下二次定位技术解决了检波器在水下实时定位问题,但存在着无解点和易受干扰等不足。为此,我们引进了海底电缆初至波定位技术。本文简述了初至波定位技术的原理,并对声波水下定位系统和初至波定位系统进行了比较,最后得出了对初至波定位成果资料的质量评价原则,即:野值是否过多,整体偏差性趋势是否明显,点位间隔要合理,与其它定位成果作比较。
Although underwater acoustic secondary positioning technique relating to ocean bottom cable has solved the underwater real-time positioning problem of hydrophones, yet there are still some deficiencies such as no solution point and easy disturbance by other factors. First-break positioning technique for ocean bottom cable is then introduced to remove above deficiencies. First-break positioning technique is described briefly in its principle, and then it is compared with underwater acoustic positioning technique,Finally, quality evaluation criteria for first-break positioning result are given, which include no or few wild values, no obvious whole deviation, reasonable point interval and comparison with other positioning result.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1999年第6期670-674,共5页
Oil Geophysical Prospecting
关键词
海底电缆
初至波
二次定位
质量
地震采集系统
ocean bottom cable,acquisition,first break,secondary positioning, wild value, whole deviation tendency, point interval, quality evaluation