... radar 三维雷达探测装置 three-dimensional ray tracing 三维射线追踪 three-dimensional reconstruction 三维空间再造 ...
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本文基于费马原理，利用全路径迭代算法实现体元模型中的三维VSP两点射线追踪。
Based on Fermat's principle, the paper USES full-path iterative algorithm to realize 3-d VSP two-point ray tracing in volume element model.
三维波前重建法射线追踪过程中可以保证稳定合理的射线密度，克服了常规射线追踪方法存在阴影区的问题。
The 3d wavefront construction method ray tracing can ensure stabile and reasonable density of rays, avoid the shadow problems in those traditional methods for ray tracing.
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