黏声波高阶傅里叶有限差分法参数优化成像

肖世鹏, 熊高君, 袁梦雨, 毛明秋, 王胜艺, 韦增涛

Parameter optimization and imaging of visco-acoustic media using high-order Fourier finite-difference method

XIAO Shi-Peng, XIONG Gao-Jun, YUAN Meng-Yu, MAO Ming-Qiu, WANG Sheng-Yi, WEI Zeng-Tao

图5 不同方法的Marmousi模型成像结果对比 a—Maimousi速度模型;b—2阶FFD正演(Q=∞);c—2阶优化FFD正演(Q=∞);d—4阶优化FFD正演(Q=∞);e—4阶优化FFD正演(变Q介质)

Fig.5 Marmousi model imaging by different mothods a—Marmousi velocity model;b—second-order FFD forward(Q=∞);c—second-order optimized FFD forward(Q=∞);d—fourth-order optimized FFD forward(Q=∞);e—fourth-order optimized FFD forward(changing Q value)