Examination on Fast Algorithms of Compact Finite Difference Calculation for Finite Difference Time Domain Acoustic Wave Simulation

Examination on Fast Algorithms of Compact Finite Difference Calculation for Finite Difference Time Domain Acoustic Wave Simulation
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有限差分时域声波仿真的紧凑有限差分快速算法检验

DOI:
10.1143/jjap.50.07hc12
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发表时间:
2011
影响因子:
1.5
通讯作者:
T. Tsuchiya
T. Tsuchiya
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Takeshi Yoda;K. Okubo;N. Tagawa;T. Tsuchiya

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本文研究了一种快速有效的紧致有限差分(FDs)计算方法。该方法采用递归滤波(RF)方法。该方法基于z变换及其RF算法。采用射频法分析了紧凑fd的声传播特性。使用RF算法,我们可以实现紧凑的有限差分时域(FD-TD)分析,作为比使用LU分解(即Tomas方法)的传统技术更简单的代码。本研究的结果表明,射频法减少了紧凑fd所需的计算时间。
In this study we examined a fast and efficient calculation method for compact finite-differences (FDs). The proposed method employs a recursive filter (RF) method. This method is based on z-transformation and its RF algorithm. Analysis of sound propagation using compact FDs with the RF method was implemented. Using the RF algorithm, we can implement compact finite difference time domain (FD-TD) analysis as a simpler code than a conventional technique using LU factorization, i.e., the Tomas method. The results obtained in this study clarified that the RF method reduces calculation time required for compact FDs.
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
Takamasa Suzuki;Shin Nagasaki;Osami Sasaki;Sunggwan OH
通讯作者: Sunggwan OH