scattering field

An algorithm based on the control theory of partial differential equations is proposed. It is also shown that the Null field method originally developed in the problem of acoustic scattering can be used to solve the corresponding adjoint problem of the optimal problem.

提出基于偏微分方程控制方法的一种算法，并证明原用于处理散射问题的Null-field method可用来求解优化问题的随伴问题。

The scattering coefficient and differential scattering cross section ( DSCS) are derived by expanding the field with the vector spherical harmonic function and discussing the light scattering from the defect particals on the wafer.

通过对场进行矢量球谐函数展开，就基片上缺陷粒子的光散射问题展开讨论，推导求解出散射系数及微分散射截面。

Computation Scattering Field of Various Microwave Scattering Bodies Excited by TE Wave

TE波入射渐变微波散射体散射场的计算

The atomic processes of electron impact ionization and elastic scattering by plasma ions are included. The thermal and streaming motion of the ions along the magnetic field is also taken into consideration.

考虑了氦原子被电子碰撞电离，氦原子与等离子体离子之间的弹性散射等原子过程以及离子的热运动和沿磁力线的流动。

Using the dressed test particle approach to deduce the scattering power spectrum of radio waves by a quasi-equilibrium ionized gas in the presence of an external magnetic field

用试验粒子法求有外磁场影响时准平衡态下的等离子体气体的散射功率谱

Theory of Laser Scattering Field and Its Applications

激光散射场理论及其应用

As an example of the DGF's application, the scattering field calculation of a metal sphere resting on the broad wall of the loaded rectangular waveguide is given by mo ney ethod.

作为并矢格林函数应用的例子，给出了位于加载波导宽边上的金属球散射场的矩量解。

In this program we calculate the scattering field of a infinite rectangular surface.

在这个项目中,我们计算了散射场的无限矩形表面.

In absorbing boundary conditions, discuss relationship between the angle of incidence and reflection coefficients, the relationship between parameters selected and the computational efficiency and accuracy of calculation. Compute and simulate scattering field of thin plate conductivity.

在吸收边界条件下探讨了入射角与反射系数的关系和参数选取对计算效率和精度的影响，计算并仿真了导电薄平板对入射波的散射。

Through polarization base transformation, the Electric field vector of the incident plane wave and scattering plane wave remain a two-dimensional vector, so that the bi-static scattering matrix has the same form of the mono-static scattering matrix. 2.

通过极化基的变换，将入射平面波和散射平面波的电场矢量保持为二维矢量，使双站散射矩阵具有单站散射矩阵的测量形式。

Electron scattering from argon in laser field is investigated employing the second Born approximation. The absolute differential cross section of e Ar scattering with one, two, and three photon exchange at scatering angles 1 °~ 26 ° are calculated.

利用第二玻恩近似方法（SBA）对激光场中eAr的散射进行了研究，计算了散射角为1°～26°，交换多个光子的微分散射截面。

Error analysis of complex ray expansion method for target scattering field computation

用复射线展开法计算目标散射场的误差特性分析

According to the theory given by Hikami, Larkin and Nagaoka that relation of magnetic conductivity with the varying of magnetic field under diffusion approximation, we fitting results of experiments and get spin-orbit scattering time and inelastic scattering times.

根据Hikami，Larkin和Nagaoka给出的扩散近似下的磁导率随磁场变化关系式，拟合实验结果得到电子自旋-轨道散射时间以及非弹性散射时间。

We use the Finite-difference Time-domain ( FDTD) method to compute the scattered field of an object possessing several scattering centers. The numerical diffraction coefficient of the scattering center under investigation is then obtained by solving simultaneous equations established via GTD consideration.

利用时域有限差分（FDTD）法提供的散射场，根据几何绕射理论（GTD）建立含有绕射系数未知量的方程组，通过联立方程组的求解，得到散射体边缘的数值绕射系数。

Results show that penetrative wire can make HEMP induced current in circuits inside the shielding box increase greatly through coupling with incident field and scattering field of the shielding box.

研究表明，贯通导线通过与入射场及屏蔽机箱的散射场耦合，可使机箱内与贯通导线直接相连或不相连电路上的HEMP耦合电流显著增强。

Optical Vortices in A Thermal Rayleigh Scattering Light Field

散射光场中的光学涡旋