将菲涅耳波带板扫描全息术用于高散射介质成像技术中。
The Fresnel zone plate scanning holography is applied in the imaging through highly scattering media.
将菲涅耳波带板扫描全息术用于高散射介质成像技术中。
The principle of electronic holography using ultrashort laser pulse for imaging through highly scattering media is discussed.
该系统用于高散射介质中吸收体成像具有较高的横向分辨力。
The system is thus shown by experiments to be workable in imaging absorbers embedded in a highly scattering turbid media.
分析了超短脉冲激光透过高散射介质的电子学全息成像原理;
The principle of electronic holography using ultrashort laser-pulse for imaging through highly scattering media is discussed.
对于非纯散射介质,它给出了具有渐近扩散理论精度的结果。
For the absorbing medium and multiplying medium, it has given precision which the asymptotic diffusion theory possesses.
光源附近的空间分辨漫反射与散射介质的高阶光学参量有关。
Spatially resolved reflectance close to the source is dependent on high-order optical parameters of the media.
第三章建立了高散射介质的偏振光后向扩散散射的物理模型。
In Chapter 3, we firstly establish the physical model of the diffuse backscattering of polarized light from highly scattering media.
受强散射介质的影响,被动成像系统难以探测到远距离的微弱目标。
Affected by strong scattering medium, the faint target in long range is difficult to detected by passive imaging system.
本文考察了激光脉冲在吸收、发射、各向异性散射介质内引起的瞬态热效应。
The transient thermal effect in an absorbing, emitting and anisotropic scattering medium is investigated, which is caused by the laser pulse incidence.
提出激光在强散射介质中传播的空间分布模型,对压缩照射进行了理论分析。
The space distribution model of laser propagation in strong scattering medium is advanced. The theoretical analysis for the press irradiation is made.
讨论了一种新型而且简单的门控光子计数法,用来测量高散射介质的光学参量。
A new and simple gated photon counting system is described for the recovery of optical parameters in diffusive media.
用所制作的光纤探头探测散射介质中的相对能流率分布所得的实验结果与理论结果相符合。
The detection result of the relative energy flux rate distribution in the medium can correspond to the theoretical result very well.
结果表明,各向异性散射与各向同性散射介质间的相对温度差异与散射不对称参数近似成正比。
The results show that relative temperature differences between the linearly anisotropic scattering and isotropic scattering media are approximately proportional to the scattering asymmetry parameter.
本文对于高散射介质的偏振光后向扩散散射的理论、计算机模拟和实验都进行了深入的研究和阐述。
In this dissertation, we investigate the diffuse backscattering of polarized light from highly scattering media in-depth by means of the theories, computer simulations and optical experiments.
考虑介质辐射能的入射和散射方向,导出漫反射、不透明边界、各向异性散射介质的辐射传递系数。
Considering incident and scattering directions of radiative energy, radiative transfer coefficients for anisotropic scattering medium with diffuse and opaque boundary surfaces are deduced.
频域近红外光谱系统利用一个高频正弦信号对光源进行调制,从而在大脑这类强散射介质中形成一种漫射光子密度波。
The frequency-domain NIRS instruments modulate the light with a RF sine wave, which generates diffuse photon density wave (DPDW) in turbid tissue like brain.
通过数学运算和近似处理,得到了动态散斑强度涨落的空-时相关函数的解析表达式,从理论上揭示了散斑受超声调制的过程,对散射介质中的声光调制机制做出了新的诠释。
The specific space-time intensity correlation function of dynamic speckle has been derived and opens out the mechanism of the dynamic speckle modulated by ultrasound in scattering medium.
在正演过程中,考虑了电磁波在介质中的散射和吸收,使合成剖面更真实化。
In forward modeling, the scatter and absorption of electromagnetic wave in medium are considered, which brings realer synthetic section.
该系统使用了介质分束片,可以方便地进行散射角扫描。
Dielectric beam splitter was employed in this system, which facilitates the scan of scattering Angle.
本文分别采用数值方法和解析方法,分析周期性电抗加载多层介质结构的电磁散射特性。
In this dissertation, both numerical method and analytical method are applied to analyze the EM scattering characteristics of periodically reactance-loaded multilayer dielectric structures.
散射和吸收都会引起消光,但在一个可以忽略吸收的介质中,消光主要由散射造成。
Scattering and absorption both cause extinction of light; but in a negligibly absorbing medium, extinction would be primarily by scattering.
根据这种观点,多层介质波导中波的传播和散射可以归结为多维空间向量的坐标变换,并可用传输线和网络表示。
According to this point of view the transmission and scattering in multilayer dielectric waveguides can be regarded as coordinate transformation of a vector in ann-dimensional vector space.
漫散屏,柔光屏散射光线的介质,用在摄影中使背景柔和。
A medium that scatters light, used in photography to soften shadows.
提出了一种计算非均匀介质光学常数的新方法,该方法仔细地考虑了光在非均匀介质中的吸收和散射。
A new method to calculate the optical constants of inhomogeneous mediums is presented. This method is to consider the absorption and scattering of light in the medium carefully.
为从无偏振混浊介质背向散射光确定散射光学参数,设计了倾斜入射的模拟光路以及用复合反向传播神经网络求解的方案。
To determine the optical parameters of turbid media with an unpolarized backscattering light an oblique incidence geometry with the compound bp neural network has been designed.
对于复杂非均匀介质,可以利用地震散射波来研究其分布和性质。
For complex heterogeneous medium, the distribution and characteristics of its heterogeneity can be studied by seismic scattering wave.
本文提出二维有耗介质柱局部逆散射的矩阵摄动理论。
A matrix perturbation theory in the partial inverse scattering of two-dimensional lossy dielectric cylinder is presented.
良导电柱体和介质块散射的实例证实了本文方法的有效性。
The examples of scattering by a conducting cylinder and by a dielectric body verify the efficiency of our new procedure.
良导电柱体和介质块散射的实例证实了本文方法的有效性。
The examples of scattering by a conducting cylinder and by a dielectric body verify the efficiency of our new procedure.
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