【摘要】 设计适用于人工地震宽角折射/反射测深数据,以走时残差为阈值迭代计算一维速度结构的线性反演流程,并编制相应程序LIAE1D。其特点:1)建立自适应的初始模型;2)运用广义逆矩阵法求解线性方程。该方法和程序可行有效,其结果可为后续二维反演提供较为优化的初始模型。更多还原

【Abstract】 Sounding data are first designed to be applicable to wide-angle refraction/reflection,and the 1D velocity structure linear inversion of iterative calculation is conducted by using travel time residual as the threshold.Then LIAE 1D is programmed accordingly with the following characteristics:1) the establishment of an adaptive preliminary model;2)the solution of the linear equation by means of a broader inverse moment matrix.The method and program are later proved to be feasible and efficient in numerical simulation tests as well as in the application of the Huian-Datian-Ninghua profile of Fujian artificial earthquake sounding wide-angle refraction/reflection.Thus,these results could provide a suitable preliminary model for future 2D inversion.更多还原