1) boundary impedance
边界阻抗
2) impedance boundary
阻抗边界
1.
The paper deals with the reconstruction of the shape of scatterer with impedance boundary considering point source wave incidence and near-field data.
本文考虑由点源波入射,在获取近场散射数据时具有阻抗边界的散射体的重构问题。
2.
An improved impedance boundary method was presented and the initial field was calculated by Green function,which improved the stability and accurateness of the parabolic equation(PE).
提出了一种改进阻抗边界条件的方法,并用格林函数法求解抛物方程的初始解;从而提高了抛物方程法的稳定性与精确度。
3) impedance boundary conditions
阻抗边界条件
1.
Starting from the Maxwell equation,this paper first studies the electromagnetic fields around the interface between air and left-handed material,upon which plane waves are incident,and presents the relationship of electric and magnetic fields as impedance boundary conditions.
从Maxwell方程出发,研究了平面波入射到空气和左手媒质的分界面上时,界面附近的电磁场,并将电场和磁场的关系表示为阻抗边界条件表达式,然后与右手媒质的阻抗边界条件进行对比,指出其形式上的统一和计算公式的区别。
2.
This paper presents an equation of higher-order precise impedance boundary conditions represented by transition matrix according to the homogeneous Maxwell s equations in spectrum field and the utilization of the exponential matrix analysis in generalized spectrum field.
依据齐次的谱域麦克斯韦旋度方程组,利用广义谱域指数矩阵分析方法,给出了用旋转矩阵表示的高阶精确阻抗边界条件的计算公式。
3.
In this paper, we discuss the scattering problem of an acoustic time-harmonic with impedance boundary conditionswhere D ∈ R~3 is a bounded domain with sufficiently smooth boundary dD and outward unit normal v, incident plane wave is u~i(x) = e~(ikx.
本文主要讨论由时间调和声波产生的具有阻抗边界条件的散射问题的模型 (?) 其中D(?)R~3为有界光滑区域且有单位外法向量v,入射平面波u~i(x)=e~(ikx·d)的入射方向为d,波数k∈C(Im(k)≥0),λ为阻抗系数。
4) impedance boundary condition
阻抗边界条件
1.
Application of the wide-angle parabolic equation under impedance boundary condition;
宽角抛物方程在阻抗边界条件下的应用
2.
A new method,which combines the fast multipole algorithm(FMA) with high order impedance boundary condition(HOIBC),is proposed to analyze the radar cross section(RCS) of dielectric coated cylinders.
将快速多极算法（ＦＭＡ） 与高阶阻抗边界条件（ＨＯＩＢＣ） 相结合，分析了有介质涂层的电大尺寸导体柱的雷达散射截面（ＲＣＳ） 。
3.
For Leeontovich impedance boundary condition (IBC) is approximate boundary condition, exact impedance boundary condition (EIBC) is derived out by using the general boundary condition in electromagnetic theory, applying Maxwell equations and considering propagation properties of plane waves.
针对Ｌｅｏｎｔｏｖｉｃｈ阻抗边界条件ＩＢＣ是近似阻抗边界条件这一不足之处，本文利用电磁场理论中的一般边界条件和麦克斯韦方程，考虑到平面波的传播特点，导出了不含近似的精确阻抗边界条件（ＥＩＢＣ），给出了精确阻抗边界条件的一般矢量表达式及其在直角坐标系和柱坐标系中的表达形式。
5) Impedance-sheet boundary condition
层阻抗边界条件
1.
Impedance-sheet boundary condition is employed to simulate the effect of the metallic wire-mesh screens with square cells on electromagnetic fields.
利用层阻抗边界条件模拟方孔金属线网屏对电磁场的影响。
6) static-stable impedance
静稳边界阻抗圆
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条