摘要
本文给出一种基于Huygens-Fresnel原理的射线追踪方法——波前法.该方法精度高、计算速度快,不仅可给出波从源点传播到接收点的透射走时和射线路径,而且可给出任何时刻的波阵面,为层析成像提供了一种有效的射线追踪方法.
A wave-front ray tracing (WFRT) method based on Huygens-Fresnel's principle is proposed in this paper. Numerical tests on this method show that the results are accurate enough and the algorithm corresponding to this method is very efficient. The WFRT method can provide not only travel times and ray paths of transmitted waves from a source to receivers, but also wavefronts at any moment. It is an accurate and efficient ray tracing method for image reconstruction or tomographic imaging!
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期223-232,共10页
Chinese Journal of Geophysics
基金
国家自然科学基金
关键词
图像
重建
波前法
射线路径
Wave-front ray tracing method, Computational block, Travel-time of tran-smitted wave, Ray paths, Wave-front.
