Splitting method and implicit time difference scheme are used in the numerical calculation.
数值计算中采用了分解算法及隐式时间差分方案。
Programming of trial difference calculation could be realized, so time of calculation could be reduced effectively and parameter related could be adjusted conveniently.
通过图表数据函数化可以使试差计算程序化，因而有效减少试差计算时间，还能方便地调节有关参数。
It is proved via the verification calculation that the HOH result from NGFM is consistent with that from the fine mesh difference method, but with much less computation time.
经验算，NGFM下高阶谐波计算取得与细网差分法下一致的结果，但计算时间大大缩短。
FDTD(Finite Difference of Time Domain) algorithms applied in ground echo calculation at present have the disadvantages of slow speed or large errors.
目前在超宽带地面回波计算中所使用的FDTD（时域有限差分）算法计算量较大或者存在较大误差。
The comparison of the calculation time between the streamline simulation technique and the finite difference method also confirms that streamline simulation technique has better simulation velocity.
在流线模拟技术与有限差分方法运算时间的比较中，也证实流线模拟技术具有更快的运算速度。
In this paper, through comparing various algorithms, Finite-Difference Time-Domain method (FDTD) for electric waves is selected for calculation which is applicable to this subject.
本文通过对各种算法的比对，选择了适用于本课题模型的电磁散射计算方法—时域有限差分方法(FDTD)。
The finite difference method (FDM) is used in the numerical calculation. Fielddistribution at particular time and field at one point as a function of time are displayed.
数值计算采用了有限差分法，可算出某时刻厚板边缘散射场的分布和某点声场随时间的变化。
The results of the calculation for the unstable state pointed out the relationships between the heated rate, the time occurred and the value of maximum temperature difference in the rock sample.
非稳态计算结果指出了加热速率与岩样内最大温差出现的时间和数值的关系。
At the same time, neighborhood search methods and the Calculation of Path difference designed to speed up algorithm speed.
同时设计了邻域搜索办法和路径差的计算办法，加快了算法的运行速度。
In a 2-d structure, the calculation results of a hybrid method, which is based on combing ray tracing and finite-difference time-domain (FDTD) method, agree well with the measurement.
在二维情形中，基于结合射线跟踪法和时域有限差分法(FDTD)的室内无线传播混合建模方法对于室内无线传播的预测结果与测量结果吻合较好。
In a 2-d structure, the calculation results of a hybrid method, which is based on combing ray tracing and finite-difference time-domain (FDTD) method, agree well with the measurement.
在二维情形中，基于结合射线跟踪法和时域有限差分法(FDTD)的室内无线传播混合建模方法对于室内无线传播的预测结果与测量结果吻合较好。
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