初至到时波前算法及在地震走时CT中的应用
WAVEFRONT CALCULATION OF FIRST ARRIVAL TRAVELTIME AND ITS APPLICATION IN SEISMIC TRAVELTIME TOMOGRAPHY
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摘要: 基于惠更斯原理,给出了一个简练的初至到时算法,并应用于地震走时层析成像。结果表明,新方法计算效率较Dijkstra最短路径法高一个数量级。Abstract: A simple and efficient method is proposed for calculating first arrival traveltime based on Huygens' principle,and applied to seismic traveltime tomography.The result shows the new method is faster than Dijkstra's algorithm.
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