改善的最短路径射线追踪方法

对求出的射线路径进行整体优化,以减小对出射角离散化所产生的误差,从而减小最小旅行时和射线路径的误差。文章对射线路径优化过程进行了推导;根据问题的特点提出了最短射线路径的优化循环迭代算法,提高了算法的效率和稳定性;通过理论模型验证了最短射线路径优化循环迭代算法的可行性,比较了优化最短射线路径法与最短射线路径法之间的区别。

Improved the shortest path ray tracing method

An overall optimization of calculated ray paths was made to reduce errors resulted from discretization of emer-gence angle, hence the calcaulation error between minimum travel time and ray trace. The process of optimizing raytrace was derived. According to the problems,the optimized iteration algorithm was brought forward for the shortestray path to improve the efficiency and stability of the algorithm; its feasibility was validated by the theoretical model.The difference between the optimized shortest ray path algorithm and the shortest ray path algorithmwas compared.