A New Optimization Difference Algorithm Based on Fly Fruit

摘要：

　　Acoustic wave equation is an important basis of seismic wave propagation,imaging and migration.Finite difference methods develop with its numerical stability and grid dispersion problems, and the issue of dispersion is a vital above all.Optimization methods can provide a high accuracy within a large wavenumber or frequencies.To obtain a higher precision, this paper propose a optimization difference algorithm based on fly fruit on a wide wavenumber range and construct the function of fitness which makes a process of iterating and finding the best smells.Dispersion analysis demonstrate that this scheme is much better than Taylor-expansion method.We make a experiment by applying homogeneous model, and the results indicate that fly fruit optimization approach a higher accuracy and reduce the computation cost.

关键词： fly fruit algorithm difference coefficient accuracy dispersion

作者: Min Zhang Shouhua Dong

作者单位: School of Resources and Geosciences China University of Mining & Technology,Xuzhou 221116, China China University of Mining & Technology, Xuzhou 221116, China

会议类型: 国际会议

会议名称: The 7th International Conference on Environmental and Engineering Geophysics & Summit Forum of Chinese Academy of Engineering on Engineering Science and Technology (ICEEG 2016)(第七届环境与工程地球物理学国际会议)

会议地点: 北京

会议语种:英文

页码: 205-207

在线出版日期: 2016-06-27（万方平台首次上网日期，不代表论文的发表时间）