本文主要研究的是基于散射体信息的无线定位算法。
The wireless location algorithm based on the scatter information is described in this paper.
探讨了有耗介质中金属散射体断层成像的迭代算法。
An iterative microwave imaging algorithm for metallic cylinders in lossy media was proposed.
研究了二维海洋波导中声波与散射体相互作用的问题。
The interaction of acoustic waves with the scattering object in an oceanic waveguide was examined.
永久散射体的有效识别是干涉系统中的一个关键环节。
How to identify effectively PS from SAR images is one of the crucial procedures in data reduction of the PS interferometric system.
描述实际散射体散射特性的散射矩阵一般是时间的函数。
The scattering matrix, which describes the scattering property of practical scatters, is generally a function of time.
本文提出了一种寻求散射体群的散射场的统计性质的方法。
A method for finding the statistical properties of scattered fields caused by scatterers is established.
用三维线弹性动力学的反演方法重构了弹性介质中散射体的形状。
A three-dimensional linearized elastodynamic inversion method to reconstruct the shape of scatterer has been investigated in this paper.
本文主要考虑用探测法重构两个不同类型散射体边界的数值实现。
This paper considers the reconstruction of two obstacles with different types of boundary by probe method.
数值结果表明：与传统方法相比，该方法可以提高棱边散射体的计算精度。
Numerical results suggest that the method presented can improve the accuracy of computation for scatterers with edges.
本文重温了声散射和散射强度概念以及不同形状散射体的散射的理论分析结果。
The concepts of acoustic scattering and scattering strength of different acoustic reflectors are reviewed in this paper.
对含有反常色散材料和金属材料散射体无序介质的光子定域化行为进行了理论研究。
Photon localization of random media containing anomalous dispersive dielectric materials and metal scatterers, was investigated theoretically.
合理选择集群散射体粒度分布参数，可实现对复杂生物组织散射相函数的精确描述。
With proper parameters of particle size distribution, Mie phase function can characterize complex biological tissue.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
本文提出了一种新的复杂散射体雷达散射截面(RCS)的分析方法——频率特性外推法。
A new method for analyzing the Radar Cross Section (RCS) of a complex scatterer is put forward in the paper, which is a method of frequency characteristic extrapolating.
利用该程序详细讨论了散射系数、吸收系数以及散射体大小等对生物组织内光传输特性的影响。
And the influence of the scattering coefficient, absorption coefficient and size of scatters in tissue on propagation of light in tissue is studied in detail.
本文提出用于地下成像无源地震方法的分析，在该方法中应用环境地震噪声作为地下散射体的照明源。
An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the source of illumination of subsurface scatterers.
复杂的多界面导体散射体，如二面、三面角反射器与飞行器圆筒进气道等大多可由以上两种界面组成。
Then scattering field of the more complicated scattering targets, such as a dihedral, a trihedral, or a cylindrical inlet, constructed by the surfaces of …
方法超声彩色血流成像计算机仿真中，血流信号是对成像区间内所有点散射体的回波信号累加而得到的。
Methods in the computer simulation of the ultrasound color flow imaging, flow signals are obtained by accumulating all the echo signals of scatterers in the imaging area.
在数值计算中，该方程方法只需将散射体进行剖分，而不必将剖分推至整个计算域内进行，计算效率较高。
The method can be implemented with great efficiency in numerically simulation for the reason of mesh division can be made in scattering region instead of whole computational domain.
针对传统的抛物线算法在计算棱边散射体时误差较大这一问题，本文引入了一致性绕射理论对其进行修正。
To eliminate the obvious error resulted by the scattering analysis of scatterers with edges by traditional PE method, Uniform Theory of Diffraction was presented to solve the problem.
所提出的方法被证明是高效且准确的，对于任意形状的线结构的准确建模和散射体的有效分析也被证明是有用的。
The proposed moment method is of high efficiency and accuracy, and is proved useful for the accurate modeling and efficient analysis of scattering from conducting wire structures the arbitrary shapes.
为了能够重构散射体d，我们可以建立起远场模与散射体之间的联系，这种联系可以通过所谓的远场算子f来确定。
In order to reconstruct the shape of scatterer d, we establish the relation between the scatterer and the far field pattern. The relation can be fixed by so called far field operator f.
弹性波在含有孔洞、裂纹或界面等障碍物的结构中传播时，会在它们附近发生散射，导致散射体附近产生动应力集中。
When elastic waves propagate in structures with obstacles such as cutouts, cracks or interfaces and so on, wave scattering and dynamic stress concentration can occur near these scatterers.
本文针对一般fd - TD方法分析计算二维理想导体散射问题所遇到散射体边角处难以精确处理的缺点进行了改进。
In this paper the improved FD-TD method is presented for modeling the edges of perfectly conducting objects accurately when analyzing and computing the two-dimensional scattering problems.
本文对以甲基丙烯酸甲酯预聚物（Pr-MMA）为光散射体，以聚苯乙烯（PS）为基体的有机光散射材料的制备进行了研究。
The thesis makes researches into taking the pre-polymer of methyl methacrylate (Pr-MMA) as light scattering substance, and polystyrene (PS) as matrix to make organic light scattering materials.
研究结果表明，当信号信噪比较小时散射体移动不会对系统性能产生太大的影响，同时缓慢移动的散射体对系统性能的影响也不大。
It showed that the scatterers movement has slight effect on the UWB system when the signal-to-noise ratio (SNR) is small and the effect is mild when the velocity of scatterers is slow.
利用散射体的几何和物理特征，减少用矩量法求解散射场过程中所需要的存储量和计算时间，是当前具有理论和实际意义的重要课题。
It is of both theoretical and practical importance to reduce the storage and CPU time of moment methods by utilizing the geometrical and physical features of the scatterer.
同一马氏体晶粒中具有相同孪生面的孪晶，尽管其具有相同的电子衍射谱（EDP），但它们在电子衍射中却是一些非 相干散射体。
Although the twins in a martensite grain corresponding the same twinning plane exhibited the same EDP, the electron waves from these twins were noncoherent scattering each other.
同一马氏体晶粒中具有相同孪生面的孪晶，尽管其具有相同的电子衍射谱（EDP），但它们在电子衍射中却是一些非 相干散射体。
Although the twins in a martensite grain corresponding the same twinning plane exhibited the same EDP, the electron waves from these twins were noncoherent scattering each other.
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