柱面波

柱面波照明的周期性物体Talbot效应的研究

Research on the Talbot Effect of a Periodic Object Illuminated by Cylindrical Wave

复杂目标对柱面波散射的二维ADI-FDTD方法

2D ADI-FDTD method applied to EM scattering with cylindrical wave source illumination

把用UTD计算的结果和用矢量柱面波展开法求得的解析解结果作了比较，两种结果相当一致。

The result is compared with the analytical solution obtained by using the method of cylindrical vector wave functions expansion , and a good agreement is reached .

研究了用波长为632.8nm的柱面波与平面波记录形成的体全息柱透镜用波长为800nm的平面波重现下的波前转换情况。

The wave-front conversion between cylindrical and plane waves by photorefractive local volume holograms recorded at 632.8 nm and reconstructed at 800 nm is investigated in this paper .

本文导出了介质覆盖直角劈标量柱面波的本征函数解，并采用修正的最陡下降法，导得其远区场解的近似式。其GTD式简洁，便于计算。

The eigenfunction solution of scalar cylindrical wave by a wedge with dielectric coating is obtained , and by taking the modified method of steepest descent , a Far-Zone approximate solution is given , it 's expressed in simple GTD form , and easy to compute .

介质覆盖劈面标量柱面波的绕射

The Diffraction of Scalar Cylindrical wave by a wedge with Dielectric Coating

柱面波的有限差分解法研究

Research of the cylindrical wave with finite differential method

由球对称波导出的柱面波方程的一种通解

A General Solution of the Cylindrical Wave Equation Derived from Symmetrical Sphere Waves

界面附近目标对柱面波的声散射

Sound scattering of cylindrical wave from a target near a plane boundary surface

平面波、球面波和柱面波间的表示

Representations between planar , spherical , and cylindrical waves

直线爆炸所形成的柱面波的近似分析解

An Approximate Analytical Solution of the Cylindrical Detonation Wave Generated by the Linear Explosion

在介质内表面处柱面波的反射和减反射

Cylindrical Wave Reflection and Antireflection at Media Interfaces

线阵列的柱面波及其发散

Cylindrical wave of line array and its spreading

球面波和柱面波的复射线束展开

Complex ray expansion of spherical and cylindrical wave

局域体全息光栅衍射的平面波与柱面波的波前转换研究

Study of Wave-Front Conversion by Local Volume Holographic Grating Diffraction between Cylindrical and Plane Waves

在板中的弯曲波主要为柱面波的形式，此柱面波在各方向上的传播机率相同。

In plates there exits a cylindrical bending wave , this wave runs with the same chance in all directions .

为了使数值模拟更加符合实际情况，考虑柱面波入射，并将入射波进行加权处理，使迭代计算更加稳定。

To take account of the spreading nature of the incident wave , a weighting function is applied to ensure stability of the iteration .

为了模拟柱面波在空间的传播，给出了在柱坐标系下完整的总场和散射场的连接边界条件。

In order to simulate the propagation of cylindrical wave in space , the perfect Boundary connecting condition of total field and scattering field is proposed .

结果表明，层中波场由一系列柱面波组成，其衰减特性与围岩中的规律不同。

The results indicated that the field in the stratum is composed of a series of cylinder wave which has the attenuation different from the country rock .

根据这一边界条件，编制了相应的计算程序检验其吸收特性，并与均匀柱面波传播的简单吸收条件作了比较。

Program has been set up to identify its absorbing characteristics . Compared with the results of the simple absorbing boundary condition under the harmonious cylinderical wave propagation .

因而进行工程建设时所产生的柱面波，可能会影响原有隧洞结构的安全，所以对该影响进行定量估计是很有必要的。

So , the cylindrical waves generated by the explosion may affect the safety of the original underground tunnel and it is necessary to compute the impact quantitatively .

同时研究了柱面波的柱面多层减反射涂层，发现这些涂层不能应用通常的四分之一膜层设计，在此基础上叙述了新的设计原理。

Cylindrical-wave multi-cylindrical-layer antireflection coatings are also studied . We find that conventional quarter-wavelength layer designs cannot be used for these coatings and new design principles are outlined .

基于柱面波和球面波动方程，推导建立了适用于无限介质中二维和三维瞬态波动分析的显式时域辐射边界条件公式。

Locally explicit time-domain radiation boundary condition for 2-D and 3-D transient analyses of wave propagation in unbounded media were developed for the cylindrical and spherical wave equations .

通过在平面波谱域中比较复射线束叠加场和标准解的方法，导出了球面波和柱面波的复射线束展开系数公式。

In this article , we derive complex expansion formula of spherical and cylindrical waves by comparing the stacking field of complex ray and the close-form solution in the plane spectral domain .

采用下行波射线法向下延拓和上行波波动方程向下延拓的方法，使柱面波剖面偏移成像。

The cylindrical wave section is migrated and imaged by means of the ray path downward continuation of the down-going wave and the wave equation downward continuation of the up - going wave .

在平面波与柱面波干涉形成全息透镜的设计中，为了获得最优的衍射效率，应当根据要求合理地选择记录所用柱面波和设计光栅的几何尺寸。

It is suggested that for the diffraction efficiency optimization of the holographic grating recorded by plane and cylindrical waves the recording cylindrical wave and the geometrical dimension of the grating should be carefully designed according to the request .

处理有限裂面反射问题，考虑自裂面反射的声能以柱面波形式辐射，从而导出与信号幅度成正比的总声压。

The reflected acoustic energy from cracked surface in the form of cylindrical waves was adopted to deal with the problem of the acoustic reflection from finite cracked surface . Thus , the acoustic pressure which was directly proportional to signal amplitude was deduced .

研究了爆炸应力波在煤岩体中的传播与衰减规律，提出了可将条形药包爆破柱部应力波当作柱面波，端部应力波当作球面波处理的研究方法；

And then by the attenuation regulation and distribution character of stress wave under the linear charge blasting , the paper bring forward the idea that the calumniation stress wave can be regarded as cylinder stress wave , the end stress wave as spherical wave .

地下圆形衬砌隧洞对柱面SH波的散射解析解

On Scattering & Diffraction of Underground , Circular , Lined Tunnels Subjected to Incident Cylindrical SH Waves

渐近分析与数值考察都表明，井径r1→∞时，柱面Love波频散方程趋向平面双层半空间的Love波方程，柱面Love波的截止频率趋于零。

The asymptotic expression of dispersion equation of cylindrical Love waves as well radius r 1 →∞ consistently tends to the dispersion equation in the horizontal half space case , and cut off frequency tends to zero .