| 用于图像重建的波前法射线追踪 |
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| 引用本文： | 黄联捷,李幼铭.用于图像重建的波前法射线追踪[J].地球物理学报,1992,35(2):223-233. |
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| 作者姓名： | 黄联捷 李幼铭 |
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| 作者单位： | 中国科学院地球物理研究所 北京 100101 |
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| 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.
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| 关 键 词： | 波前法射线追踪 计算方块 透射走时 射线路径 波阵面 |
| 收稿时间： | 1991-02-08 |
THE WAVE-FRONT RAY TRACING METHOD FOR IMAGE RECONSTRUCTION |
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| HUANG L''''AN-JIE LI YOU-MING Wu RU-SHA.THE WAVE-FRONT RAY TRACING METHOD FOR IMAGE RECONSTRUCTION[J].Chinese Journal of Geophysics,1992,35(2):223-233. |
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| Authors: | HUANG L'AN-JIE LI YOU-MING Wu RU-SHA |
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| Institution: | Institute of Geophysics, Academic Sinica, Beijing 100101 |
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| Abstract: | 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! |
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| Keywords: | Wave-front ray tracing method Computational block Travel-time of tran-smitted wave Ray paths Wave-front |
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