大地测量与地球动力学2017，Vol.37Issue(9)：977-982,6.DOI:10.14075/j.jgg.2017.09.021
二维速度结构走时反演RAYINVR算法试验
2-D Traveltime Inversion RAYINVR Algorithm Test
摘要
Abstract
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.关键词
走时反演/数值试验/初始模型/走时随机扰动/阻尼因子Key words
traveltime inversion/algorithm test/initial model/random error/damping factor分类
天文与地球科学引用本文复制引用
刘汉奇,王夫运,刘志..二维速度结构走时反演RAYINVR算法试验[J].大地测量与地球动力学,2017,37(9):977-982,6.基金项目
Sichuan and Yunnan National Earthquake Detection Prediction Experiment Project,No.2016CESE0103.川滇国家地震监测预报试验场项目(2016CESE0103). （2016CESE0103）
