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Improved Ray Tracing Method Based on the Snell’s Law

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Advances in Acoustic Emission Technology (WCAE 2017)

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 218))

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Abstract

Passive wave tomography is one of the important techniques for microseismic monitoring in the complex underground mines. The resolution and reliability of tomography are influenced by the ray tracing method. Compared with other algorithms, the shortest path method is a robust global ray tracing algorithm, but there are still some problems. The study attempts to use the shortest path method to make the ray traced to satisfy the law of wave propagation, making it more realistic. The Snell’s law is introduced to improve the accuracy of the ray tracing method, and the disturbance of the points is considered so that the Snell’s law can modify the ray more effectively. The improved method is used to perform simulation in the grid model, and the result is compared with the traditional ones. The results show that the improved method combines the advantages of various methods and achieves good results, which indicates that the ray can jump out the original cell and bypass the empty area. The improved ray tracing method also can get a global optimal solution.

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Acknowledgment

The authors wish to acknowledge financial support from the Fundamental Research Funds for the Central Universities of Central South University (2018zzts722), The Young Elite Scientists Sponsorship Program by CAST (YESS20160175).

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Authors and Affiliations

  1. School of Resources and Safety Engineering, Central South University, Changsha, China

    Qingchun Hu

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  1. Qingchun Hu
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Correspondence to Qingchun Hu .

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Editors and Affiliations

  1. China Special Equipment Inspection and Research Institute, Beijing, China

    Gongtian Shen

  2. China Special Equipment Inspection and Research Institute, Beijing, China

    Junjiao Zhang

  3. China Special Equipment Inspection and Research Institute, Beijing, China

    Zhanwen Wu

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Hu, Q. (2019). Improved Ray Tracing Method Based on the Snell’s Law. In: Shen, G., Zhang, J., Wu, Z. (eds) Advances in Acoustic Emission Technology. WCAE 2017. Springer Proceedings in Physics, vol 218. Springer, Cham. https://doi.org/10.1007/978-3-030-12111-2_40

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