The backscattering and forward scattering functions of finite cylinders with hemispheroidal end caps, which have different ratio of length to width or different geometric end caps, were calculated. 以两端有半椭球顶的有限长圆柱体为例,分别计算了具有不同长宽比或者是不同端部几何形状的有限长圆柱体的反向散射和前向散射函数。
Underwater forward scattering imaging model based on beam spatial broadening 基于光束空间展宽的水下前向散射成像模型
Theoretical analysis on measurement error of forward scattering visibility meter 前向散射能见度仪测量误差的理论分析
The result shows that the forward scattering intensity of particles is dominant; 结果表明,粒子的前向散射占优势;
In the second chapter, the forward scattering series methods have been deducted. 第二章推导了逆散射级数法的正演过程。
Radar cross section ( RCS) of targets in bistatic forward scattering radar system is researched. 研究了双基地前向散射系统中雷达截面RCS的有关特点和计算方法。
Investigation of the atomic structure of surfaces by means of forward scattering of medium energy electrons 用中能电子向前散射图像研究表面原子结构
Based on the radiative transfer and Mie scattering theory, the computing method of analyzing the effects of forward scattering of fog on range-gated imaging system is given. 根据辐射传输和Mie散射理论,给出了分析雾的前向散射对距离选通成像系统影响的计算方法。
This reaction can also proceed through the addition/ abstraction mechanism on the first excited-state PES, which partially accounts for the forward scattering of the OH products observed in experiment. 该反应还可以通过抽取机制发生在第一激发态上,部分解释了实验中观察到的OH产物的向前散射。
Based on the classical Mie scattering theory, the influence on the measured results which is caused by the inputted refractive index in data processing of the small angle forward scattering laser particle sizer is investigated by means of POWELL inversion algorithm. 在经典Mie散射理论基础上,利用POWELL反演方法研究了小角前向散射激光测粒仪中输入折射率对测量结果的影响。
This paper presents a new kind of the measurement instrument for runway visual range using crossing dual light beam forward scattering method. 介绍了一种利用交叉型双光路前向散射方法实现的跑道能见度激光测量仪。
An experiential formula that corrects the difference in backscattering region is found. In forward scattering region a region with less difference is found. 在后向散射区中找出了修正这种差异的经验公式,在前向散射区中找出了差异较小的区域。
The exiting multiple forward scattering illumination models were simplified and improved, and the texture mapping and the OpenGL were used to enhance the operation speed. 对现有的多重前向散射光照模型进行了简化和改进,使用纹理映射和OpenGL函数进行加速。
A prototype was developed and put into operation in factory for the measurement of optical fiber diameter by forward scattering light with He-Ne laser as light source. 本文叙述以He-Ne激光器作为光源,应用光的前向散射法,测量光导纤维直径,并已研制成样机,在有关工厂得到了实际应用。
We have proposed a method of imaging based on the principle of small-angle forward scattering. We performed several simulations with Monte-Carlo method, and drew a conclusion according to the results. 曾提出利用小角度前向散射原理成像的方法,利用该方法进行了若干次模拟计算,并对结果进行了分析。
The experiment research on the forward scattering of airborne radar transmitted wave with airscrews is presented in this paper. 本文就飞机螺旋桨对机载雷达发射波前向散射的实验研究情况作了介绍。
Anomalous saturation for a backward Raman amplification with forward scattering feedback in H2 at high pressures is described and compared with a theoretical model. 本文讨论了高压氢气中在正向散射反馈下后向喇曼放大的异常饱和特性,并且和理论模型作了比较。
The Influence of the Inputted Refractive Index of the Small-angle Forward Scattering Laser Particle Sizer 小角前向散射激光测粒仪中折射率对测量结果的影响
The graphs of the forward scattering energy deposition and backscattering energy deposition have been given. 得到了散射电子在电子束胶层中背散射与前散射的能量沉积分布图。
Near forward scattering particle image velocimetry ( PIV) and its application to jet flow study 激光近前向散射粒子图像测速技术(PIV)及其在射流研究中的应用
Study of Forward Scattering Effections on Laser Transformation in Raindrop 雨滴前向散射对光传输影响的研究
Analysis of the forward scattering and back scattering in E-beam 电子束背散射与前散射的分析
Regarding the extinction of every kind of scatter, the results of the sum of scattering and absorption coefficient, and that from forward scattering theory are compared and discussed. 关于各类散射体的衰减,本文比较了散射系数和吸收系数之和,与前向散射定理的结果,并对前向定理的适用性进行了讨论。
Hence, high frequency S coda wave is not traditional superposition of scattering wave from backward or isotropic scattering process, but is originated from the transfer energy from the multiple forward scattering process between scatters and S wave. 因此,高频S尾波并不是传统意义上的各向同性散射过程、或者后散射过程引起的散射波的叠加,而是源于S波与散射体多次前散射过程中的能量转移。
Shadow inverse synthetic aperture radar ( SISAR) is a bi-static forward scattering barrier radar. 阴影逆合成孔径雷达(SISAR)属双多基地前向散射栅栏雷达体制。
Numerical results show that DNG can reduce the backscattering of objects, but increase forward scattering of objects simultaneously. 数值结果表明,双负介质减小目标后向散射,同时增大了目标的前向散射。
According to the properties of intensity and energy distribution of bubbles 'light scattering, traditional Gauss fit for scattering phase applied in traditional transfer equation in small angle approximation is improved, and the forward scattering error is also corrected. 根据分析得到的气泡群散射光的强度和能量分布特性,改进了小角度辐射传输方程中已有的相函数高斯拟合方法,同时对约化强度进行了前向散射修正。
The researches about image restoration has always focused on the description of PSF, the models were all built on the basis of the ocean optics theory and small-angle forward scattering theory. 有关水下图像复原的研究一直集中在PSF的描述上,模型都是建立在海洋光学理论和小角度前向散射理论基础上的半经验公式。
Among them, the scattering action of water includes forward scattering and backward scattering, and which represent system point spread function and additive noise in imaging system. 其中,水的散射作用包括前向散射和后向散射,具体表现在成像系统中分别为系统点扩散函数和加性噪声。
Shadow inverse synthetic aperture radar ( SISAR), a bistatic forward scattering barrier radar, can achieve orientation, shadow imaging and identification of moving object, except the function of detection. 阴影逆合成孔径雷达(SISAR)是一种双基地前向散射栅栏雷达,除了具有目标探测的功能外,还可实现对运动目标进行定位、成像和识别的功能。