现代地质2012，Vol.26Issue(6)：1231-1236,6.
Kirchhoff积分法OBS数据地震波场延拓
Extrapolating the OBS Data Using the Kirchhoff Integral Method
摘要
Abstract
When the OBS (ocean bottom seismograph) technique is used to explore the Earth, the shots are on the sea surface and the receivers are on the sea floor, so the OBS data can't be processed in the conventional seismic data processing method. In order to solve this problem, the shots and OBS need correcting into the same surface. Here the Kirchhoff integration method is carried out to extrapolate the shots onto the sea bottom surface where the OBS lies on and ideal results are achieved. The Kirchhoff extrapolation processing used here causes little negative influence on the resolution and wave field's signal/noise ratio. In addition, more accurate velocity field is achieved by velocity analysis to the extrapolated data than to the static shift corrected data, and this is very important to the consecutive data processing such as NMO (normal moveout) , stack and so on.关键词
海底地震仪/静校正/Kirchhoff积分法Key words
ocean bottom seismograph/ static shift correction/ Kirchhoff integration method分类
天文与地球科学引用本文复制引用
王祥春,王延峰,夏常亮,刘学伟..Kirchhoff积分法OBS数据地震波场延拓[J].现代地质,2012,26(6):1231-1236,6.基金项目
中央高校基本科研业务费专项资金资助项目(2011YYL135) （2011YYL135）
国家“973”计划项目(2009CB219505) （2009CB219505）
中国地质大学国际科技合作项目(2010DFA21630). （2010DFA21630）
