二维速度结构走时反演RAYINVR算法试验

摘要

RAYINVR is an inversion algorithm for calculating two-dimensional velocity structure based on seismic wave traveltime.It consists of 3 parts,including model parameterization,ray tracing and damped least squares inversion.In order to analyze the influence factors of the algorithm on the imaging results,numerical experiments are analyzed from the four aspects of the initial model,observation data,damping factor and identification errors.The results show that the program can be per formed quickly with efficient inversion.Meanwhile,the initial model,observation data,damping factor,identification errors,and so on,have an impact on the results of inversion and resolution.%为分析RAYINVR算法对成像结果的影响,分别从初始模型、观测数据、阻尼因子和识别误差4个方面进行数值试验.结果表明,该程序能够进行快速有效的反演,初始模型、观测数据、阻尼因子、数据不确定性等对反演结果和分辨率有一定的影响.