助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   数值色散 在 无线电电子学 分类中 的翻译结果: 查询用时:0.161秒
图标索引 在分类学科中查询
所有学科
无线电电子学
物理学
电力工业
电信技术
数学
航空航天科学与工程
计算机软件及计算机应用
力学
更多类别查询

图标索引 历史查询
 

数值色散    
相关语句
  numerical dispersion
    NUMERICAL STABILITY AND NUMERICAL DISPERSION OF CONFORMAL MAPPING FDTD ALGORITHM
    保角变换FDTD算法的数值稳定性与数值色散
短句来源
    Analysis of numerical dispersion properties of MRTD and higher-order FDTD schemes
    MRTD和高阶FDTD算法的数值色散特性的分析
短句来源
    Numerical Dispersion of Nonorthogonal FDTD Algorithm in 2-D Obliquely Cartesian Coordinates
    二维非正交坐标系下FDTD方法的数值色散特性
短句来源
    Another effective method to reduce the numerical dispersion error is to use the higher-order FDTD methods.
    减少数值色散误差的另外一个有效的方法是采用高阶FDTD算法。 高阶算法具有低的色散特性,在满足同样精度的情况下可以使用比传统FDTD方法更粗的网格单元。
短句来源
    s method. Thedifference equations, the stability condition, numerical dispersion characteristic andabsorbing boundary condition are discussed.
    首先本文回顾了时域有限差分Yee算法,包括时域有限差分的差分方程、稳定性条件、数值色散特性、吸收边界条件等。
短句来源
更多       
  numerical dispersion
    NUMERICAL STABILITY AND NUMERICAL DISPERSION OF CONFORMAL MAPPING FDTD ALGORITHM
    保角变换FDTD算法的数值稳定性与数值色散
短句来源
    Analysis of numerical dispersion properties of MRTD and higher-order FDTD schemes
    MRTD和高阶FDTD算法的数值色散特性的分析
短句来源
    Numerical Dispersion of Nonorthogonal FDTD Algorithm in 2-D Obliquely Cartesian Coordinates
    二维非正交坐标系下FDTD方法的数值色散特性
短句来源
    Another effective method to reduce the numerical dispersion error is to use the higher-order FDTD methods.
    减少数值色散误差的另外一个有效的方法是采用高阶FDTD算法。 高阶算法具有低的色散特性,在满足同样精度的情况下可以使用比传统FDTD方法更粗的网格单元。
短句来源
    s method. Thedifference equations, the stability condition, numerical dispersion characteristic andabsorbing boundary condition are discussed.
    首先本文回顾了时域有限差分Yee算法,包括时域有限差分的差分方程、稳定性条件、数值色散特性、吸收边界条件等。
短句来源
更多       
  numerical dispersion
    NUMERICAL STABILITY AND NUMERICAL DISPERSION OF CONFORMAL MAPPING FDTD ALGORITHM
    保角变换FDTD算法的数值稳定性与数值色散
短句来源
    Analysis of numerical dispersion properties of MRTD and higher-order FDTD schemes
    MRTD和高阶FDTD算法的数值色散特性的分析
短句来源
    Numerical Dispersion of Nonorthogonal FDTD Algorithm in 2-D Obliquely Cartesian Coordinates
    二维非正交坐标系下FDTD方法的数值色散特性
短句来源
    Another effective method to reduce the numerical dispersion error is to use the higher-order FDTD methods.
    减少数值色散误差的另外一个有效的方法是采用高阶FDTD算法。 高阶算法具有低的色散特性,在满足同样精度的情况下可以使用比传统FDTD方法更粗的网格单元。
短句来源
    s method. Thedifference equations, the stability condition, numerical dispersion characteristic andabsorbing boundary condition are discussed.
    首先本文回顾了时域有限差分Yee算法,包括时域有限差分的差分方程、稳定性条件、数值色散特性、吸收边界条件等。
短句来源
更多       
  numerical dispersion
    NUMERICAL STABILITY AND NUMERICAL DISPERSION OF CONFORMAL MAPPING FDTD ALGORITHM
    保角变换FDTD算法的数值稳定性与数值色散
短句来源
    Analysis of numerical dispersion properties of MRTD and higher-order FDTD schemes
    MRTD和高阶FDTD算法的数值色散特性的分析
短句来源
    Numerical Dispersion of Nonorthogonal FDTD Algorithm in 2-D Obliquely Cartesian Coordinates
    二维非正交坐标系下FDTD方法的数值色散特性
短句来源
    Another effective method to reduce the numerical dispersion error is to use the higher-order FDTD methods.
    减少数值色散误差的另外一个有效的方法是采用高阶FDTD算法。 高阶算法具有低的色散特性,在满足同样精度的情况下可以使用比传统FDTD方法更粗的网格单元。
短句来源
    s method. Thedifference equations, the stability condition, numerical dispersion characteristic andabsorbing boundary condition are discussed.
    首先本文回顾了时域有限差分Yee算法,包括时域有限差分的差分方程、稳定性条件、数值色散特性、吸收边界条件等。
短句来源
更多       

 

查询“数值色散”译词为其他词的双语例句

 

查询“数值色散”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  numerical dispersion
Genetic algorithm in reduction of numerical dispersion of 3-D ADI-FDTD method
      
A new method to reduce the numerical dispersion of the three-dimensional Alternating Direction Implicit Finite-Difference Time-Domain (3-D ADI-FDTD) method is proposed.
      
Firstly, the numerical formulations of the 3-D ADI-FDTD method are modified with the artificial anisotropy, and the new numerical dispersion relation is derived.
      
In addition the reduction of the numerical dispersion is investigated as the objective function of the AGA.
      
This paper presents the calculation of truncation errors, namely numerical diffusion and numerical dispersion for various finite difference schemes.
      
更多          
  numerical dispersion
Genetic algorithm in reduction of numerical dispersion of 3-D ADI-FDTD method
      
A new method to reduce the numerical dispersion of the three-dimensional Alternating Direction Implicit Finite-Difference Time-Domain (3-D ADI-FDTD) method is proposed.
      
Firstly, the numerical formulations of the 3-D ADI-FDTD method are modified with the artificial anisotropy, and the new numerical dispersion relation is derived.
      
In addition the reduction of the numerical dispersion is investigated as the objective function of the AGA.
      
This paper presents the calculation of truncation errors, namely numerical diffusion and numerical dispersion for various finite difference schemes.
      
更多          
  numerical dispersion
Genetic algorithm in reduction of numerical dispersion of 3-D ADI-FDTD method
      
A new method to reduce the numerical dispersion of the three-dimensional Alternating Direction Implicit Finite-Difference Time-Domain (3-D ADI-FDTD) method is proposed.
      
Firstly, the numerical formulations of the 3-D ADI-FDTD method are modified with the artificial anisotropy, and the new numerical dispersion relation is derived.
      
In addition the reduction of the numerical dispersion is investigated as the objective function of the AGA.
      
This paper presents the calculation of truncation errors, namely numerical diffusion and numerical dispersion for various finite difference schemes.
      
更多          
  numerical dispersion
Genetic algorithm in reduction of numerical dispersion of 3-D ADI-FDTD method
      
A new method to reduce the numerical dispersion of the three-dimensional Alternating Direction Implicit Finite-Difference Time-Domain (3-D ADI-FDTD) method is proposed.
      
Firstly, the numerical formulations of the 3-D ADI-FDTD method are modified with the artificial anisotropy, and the new numerical dispersion relation is derived.
      
In addition the reduction of the numerical dispersion is investigated as the objective function of the AGA.
      
This paper presents the calculation of truncation errors, namely numerical diffusion and numerical dispersion for various finite difference schemes.
      
更多          
  其他


in this paper, the Finite—Difference Time—Domain (FD—TD) method is introduced to the study of electromagnetic scattering of infinite—long cylinders buried in lossy medium illuminated by sinusoidal plane wave. Current induced in cylinders and near scattered fields above the planar interface are given. The contour path method (CPM) is used to model the curved surface of circular cylinder in order to increase calculating precision. The dispersion relation of FD—TD method and the absorbing boundary condition in...

in this paper, the Finite—Difference Time—Domain (FD—TD) method is introduced to the study of electromagnetic scattering of infinite—long cylinders buried in lossy medium illuminated by sinusoidal plane wave. Current induced in cylinders and near scattered fields above the planar interface are given. The contour path method (CPM) is used to model the curved surface of circular cylinder in order to increase calculating precision. The dispersion relation of FD—TD method and the absorbing boundary condition in lossy medium are derived. Comparisons between the FD—TD's data and that of others are made. It verified the validity of FD—TD method in solving such kind of problems.

本文利用时域有限差分(FD-TD)方法分析计算了正弦平面波照射下埋地二维金属柱体的电磁散射特性,给出了柱体上的感应电流值和地面上方近场区的电磁场值。讨论了有耗介质中差分网格的数值色散特性和吸收边界条件。通过将本文用FD—TD计算结果与其它数值结果进行比较.证实了FD—TD方法在分析有耗介质中电磁散射问题的有效性。

In this paper the numerical dispersion characteristics of nonorthogonal FDTD algorithm in two- dimensional oblique Cartesian coordinates are discussed in detail. The numerical dispersion equation is derived and the dispersion curves in a varity of cases are obtained. The theoretical results show that the dispersion effects are related tightly with the grid sizes, the direction of the wave propagation and the angles between two edges of each grid. When the nonorthogonal FDTD algorithm is used in practice to resolve...

In this paper the numerical dispersion characteristics of nonorthogonal FDTD algorithm in two- dimensional oblique Cartesian coordinates are discussed in detail. The numerical dispersion equation is derived and the dispersion curves in a varity of cases are obtained. The theoretical results show that the dispersion effects are related tightly with the grid sizes, the direction of the wave propagation and the angles between two edges of each grid. When the nonorthogonal FDTD algorithm is used in practice to resolve electromagnetic problems in time domain, in order to reduce the numerical dispersion effects the grids in the computational space should be chosen to have as closely similar shapes and same sizes as possible.

本文详细讨论了二维非正交坐标系下FDTD方法的色散特性,导出了其数值色散方程.理论计算结果表明,非正交FDTD方法的空间色散与网络尺寸、网络内角、波传播方向有密切关系.同时指出,在应用非正交FDTD方法解决有关时域电磁问题时,网格的部分应尽量选取网格边长相接近,夹角接近90.的情况,以减少此方法的数值色散.

In order to get accurate description of the scatterer surfaces in FDTD algorithm,and to lessen FDTD numetical dispersion and reduce the computation gild numbers so as to save the computer resource,a multiple-zone meshing method is proposed.The availability of this meshing method has been demonstrated by comparing the numerical results and experimental data of the current on a triangular cylinder.At the same time,in Cartesian coordinate system we have investigated the precision of contour Path meshing technique...

In order to get accurate description of the scatterer surfaces in FDTD algorithm,and to lessen FDTD numetical dispersion and reduce the computation gild numbers so as to save the computer resource,a multiple-zone meshing method is proposed.The availability of this meshing method has been demonstrated by comparing the numerical results and experimental data of the current on a triangular cylinder.At the same time,in Cartesian coordinate system we have investigated the precision of contour Path meshing technique in FDTD algorithm and extend this technique to studying the scattering problems of conducting targets coated with absorbing materials. From Maxwell's equations in integral form we deduce iterative equations of the fields on the grids near the surfaces of scatterer as the thickness Of coating lossy material is very small.The numerical results for RCS of conducting targets coated or partially coated with absorbing materials are presented.

在FDTD方法中为了精确拟合散射体曲面边界,本文提出了分区域剖分方法,以便提高计算精度,减少网格数目,节省计算机资源和降低FDTD数值色散,金属三角形柱表面电流的计算与实验结果的比较,验证了此方法的有效性。在直角坐标系下,研究了FDTD法CP剖分技术的计算精度,将CP剖分技术推广应用于涂敷金属目标的散射问题,由Maxwell方程的积分形式推导出了在涂敷吸波介质厚度很薄的情况下,散射体表面附近网格上场量迭代方程,给出了二维涂敷和部分涂敷金属目标RCS计算结果。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关数值色散的内容
在知识搜索中查有关数值色散的内容
在数字搜索中查有关数值色散的内容
在概念知识元中查有关数值色散的内容
在学术趋势中查有关数值色散的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社