摘要
本文从波场的矢量特性出发,导出任意矢量在以直达波极化角建立的坐标系各坐标轴的投影关系式,指出传统的极化滤波方法除正交方向外,其他方向的波不能实现完全的波场分离。并进一步提出建立单道极化角度谱,在时间方向上帮助识别各波场的极化角关系;建立沿层极化角度谱,帮助分析某一反射层特定波的沿层极化角的变化规律,从而有效确定极化角。
Based on the vector characteristics of wave field, projection dependence of any vector on each coordinate axis of coordinate system built by direct wave polarizing angle have been derived here. Traditional methods of polarization filtering can not reach the complete wave field separation for waves in the other directions except orthogonal directions. Single polarizing angle spectrum has also been suggested to be built for identifying the polarization angle relations of each wave field in time direction. Polarizing angle spectrum along layer should be built to study the analysis on variation rules of a certain reflector special wave for determining effectively polarizing angle.
出处
《油气地球物理》
2009年第1期4-7,共4页
Petroleum Geophysics
关键词
矢量
极化角
波场
VSP技术
vector, polarizing angle, wave field and VSP technique
