Fast algorithm and numerical simulation for ray-tracing in 3D structure
文献类型：EI期刊论文
| 作者 | Gao Er-Gen ; Zhang An-Jia ; Han Uk ; Song Shu-Yun ; Zhai Yong-Bo |
| 发表日期 | 2008 |
| 关键词 | Communication channels (information theory) Diagnostic radiography Earthquakes Linear equations Mathematical models Medical imaging Seismology Three dimensional Tomography |
| 英文摘要 | Beginning with the method of whole path iterative ray-tracing and according to the positive definiteness of the coefficient matrix of the systems of linear equations, a symmetry block tridiagonal matrix was decomposed into the product of block bidiagonal triangular matrix and its transpose by means of Cholesky decomposition. Then an algorithm for solving systems of block bidiagonal triangular linear equations was given, which is not necessary to treat with the zero elements out of banded systems. A fast algorithm for solving the systems of symmetry block tridiagonal linear equations was deduced, which can quicken the speed of ray-tracing. Finally, the simulation based on this algorithm for ray-tracing in three dimensional media was carried out. Meanwhile, the segmentally-iterative ray-tracing method and banded method for solving the systems of block tridiagonal linear equations were compared in the same model mentioned above. The convergence condition was assumed that the L-2 norm summation for m |
| 出处 | Journal of Central South University of Technology (English Edition)
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| 卷 | 15期:6页:901-905 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24926]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Gao Er-Gen,Zhang An-Jia,Han Uk,et al. Fast algorithm and numerical simulation for ray-tracing in 3D structure. 2008. |
入库方式： OAI收割
来源：地理科学与资源研究所
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