three-dimensional scattering

Three methods for analyzing and processing the laser scattering signal of bubbles in water, the threshold detection, noise elimination processing and power spectral estimation, are put forward.

提出了阈值检测、降噪处理和功率谱估计三种分析和处理水中气泡激光散射信号的方法。

The Analysis of Three-Dimensional Electromagnetic Scattering Problems by Using the Preconditioned Conjugate-Gradient Technique Together with the Finite-Difference Frequency-Domain

有限差分法结合预条件共轭梯度分析三维电磁散射问题

Numerical Solution of the Limited Aperture Problem in Three-Dimensional Inverse Acoustic Scattering Three dimensional finite element modeling for passive source electromagnetic sounding method

三维有限孔径逆声散射问题的数值解被动源电磁测深三维有限元数值模拟

The three-dimensional finite difference approximation of Mur's absorbing boundary condition is presented in frequency domain. With the discrete formulation of Maxwell's equation for finite difference frequency domain, it is convenient to solve three-dimensional electromagnetic scattering problem.

本文构造了三维Mur二阶吸收边界条件的频域差分离散格式，结合Maxwell方程组频域有限差分方程，可方便地分析三维电磁问题。

Based on the quantum theory of radiation, the differential scattering crosssection in the process of three-photon is presented.

按照辐射场的量子理论，给出了三光子过程的微分散射截面。

Then the parallel MOM for solving three-dimensional electromagnetic scattering problems is implemented and optimized with smaller particle size.

随后又以更小的粒度实现了基于GPU的三维导体电磁散射问题的并行矩量法加速，并且对程序进行了优化。

To explain the phenomena, on the basis of ray-mode reverberation theory and three-dimensional scattering model, the expressions of the bistatic reverberation loss and the vertical correlation are put forward.

为了解释这一现象，根据浅海混响的射线简正波理论，结合三维海底散射模型，给出了浅海异地混响衰减和混响垂直相关的一般表达式。

Simulations using numerically calculated scattering response based on three thin wire target demonstrate that the method proposed in this paper is surprier to the traditional E-pulse.

基于三种细导线目标数值计算散射场的仿真实验表明，相比于传统E脉冲能量识别数，本文方法取得了很好的识别效果。

Application of Vector OSRC to Three-Dimensional Electromagnetic Scattering

三维电磁散射计算中的矢量表面辐射条件

The finite-difference frequency-domain method with preconditioned conjugate-gradient technique is presented for three-dimensional electromagnetic scattering problems.

引入预条件共轭梯度法，提出了结合频域有限差分法分析三维电磁散射问题。

Three-Dimensional Scattering Analysis Using ADI-FDTD Method

无时间约束FDTD方法在三维散射中的应用

The Application of ADI-FDTD for Three-Dimensional Scattering

ADI-FDTD在三维散射计算中的应用

This dissertation studies the integral equation method and its key techniques for three-dimensional scattering problems in multilayered media.

本文深入研究了求解平面分层介质中三维目标电磁散射的积分方程方法及其关键技术。

Due to the performances of solar cell is strongly sensitive to temperature, mechanism analysis mainly includes the following three parts: the effects of temperature on forbidden energy gap; the effects of temperature on carriers' velocity and the effects of temperature on scattering.

太阳电池性能对温度十分敏感，从机理分析出发，主要是温度对禁带宽度的影响，对载流子运动速度的影响和对散射三个方面的影响。

The three-dimensional scattering operator formulations with application in the three-dimensional inverse scattering are reviewed with emphasis on the elastic wave case.

以弹性波为重点，评述了三锥散射算子关系及其在逆散射中的应用。

So the paper is focused on the investigating measurement method of three-dimensional bottom scattering strength and the properties of irregular sea area reverberation. A method for measured bottom three-dimensional scattering strength is given in the paper which can measure sector scattering area three-dimensional bottom scattering strength.

基于此，本文主要研究海底三维声散射强度的测量方法以及不规则海域的混响特性。

High-order FDTD for calculating three-dimensional scattering problems

高阶FDTD方法在三维散射问题中的应用

Using this data, the availability and suitability of three predicted models for foreign terrain scattering coefficient are compared and analyzed.

并利用测量数据，比较和分析国外三个地面散射系数预测模型的有效性和适用性。

At last the experiment result and the result using the model of calculating sea bottom three-dimensional scattering strength are compared and analyzed. The result indicated that is matched quite well.

并将实验测量结果与海底三维散射强度计算模型的计算结果进行了对比分析，结果表明，二者有较好的一致性。

Measurement and Model Calculation of Sea Bottom Three-dimensional Scattering Strength

海底三维散射强度的测量和模型计算