As the numerical example, for the complex 2D SEG-EAGE salt model, with strong lateral velocity variations and steep dipping target fault, we test the directional illumination analysis of the acquisition system and the target-structure oriented imaging. 最后,对具有速度强横向变化上覆结构的陡倾角目标断层的复杂二维SEG-EAGE盐丘模型数据,进行采集系统目标照明分析和目标结构定向化特征成像。
In the method of lateral illumination, the influences of incident angle and the focal spot size on enhancement factor have been researched with finite-difference time domain ( FDTD) method. Meanwhile, the urgent issues in the experiment have been discussed. 在侧面照射的方案中,通过时域有限差分法(FDTD)分析了聚焦光斑尺寸以及入射角度对针尖增强效果的影响,讨论了实验中亟待解决的问题。