So, this is called back scattering.
这叫做背散射。
The principle of Laser Doppler Velocity (LDV) and the method of back scattering are presented.
介绍了激光多普勒测量技术的原理和后散射型固体表面测量方式。
The oil-water interface neutron gauge for oil storage tank is developed by using the neutron back scattering technique.
利用中子背散射技术，研制出一种立罐油水界面中子测量仪。
The back scattering coefficient of each resolution cell is calculated by employing the corresponding electromagnetic scattering model.
引入电磁散射模型，计算了每个分辨单元的后向散射系数。
The optical back scattering characteristic of wake is a most important parameter for under water targets' scout , recognition and position.
尾流光的背向散射特性是水下航行体跟踪、识别和定位目标的重要参数。
Based on the uniform geometrical theory of diffraction, the equivalent current is used to calculate the back scattering field for the finite cone.
在一致性几何绕射理论基础上，采用等效电流的方法给出了有限锥体在完全极化平面波照射下后向散射场的散射极化矩阵表示式。
In the millimeter band, the variations are found of the power density of the rain clutter induced by back scattering with frequency and rain rate.
在毫米波段计算了雨区的后向散射引起的雨杂波功率密度随频率及降雨率的变化。
The displacement vector for surface relief was determined to be near the invariant line direction using electron back scattering diffraction method.
本工作应用背散射电子衍射技术测得产生浮突的位移在不变线方向附近。
The scanning system can be used by both Mono-static and Bi-static Lidar system simultaneously and also can be used by Mono-static Lidar receiving system for back scattering of the target.
扫描系统作为单、双基地激光雷达共用发射扫描装置，同时兼顾了单基地激光雷达对目标后向回波信号的接收功能。
X ray diffraction and Rutherford Back Scattering techniques were adopted to investigate and analyze the oxidation characteristics of the films.
离子注入后进行了氧化试验，并结合X射线衍射和卢瑟福背散射进行了分析。
Angular glint is an important parameter of radar target's back-scattering characteristics. It seriously reduces guidance accuracy of millimeter radar.
角闪烁是雷达目标后向散射特性的重要物理量，它能严重降低毫米波末制导雷达的导引精度。
The contrastive experiment of back-scattering echo and beacon angle-of-arrival fluctuation was introduced.
介绍了后向散射回波与信标光到达角起伏的原理性比对实验。
A pair of orthogonal mirrors were mounted in the system to minimize the influence of back-scattering light from some other components in the system.
系统内设计了一对正交反射镜，用以减小系统中器件后向散射光的影响。
Theoretical evaluation of the angular scattering enhancement around the back-scattering direction from a randomly rough surface is studied by employing the Kirchhoff approach.
用基尔霍夫近似，研究了随机粗糙面后向散射方向上角度性的散射增强的理论。
Their process is called back-scattering interferometry (BSI).
这一过程被称为反向散射干涉法(BSI)。
An approach to the detection of underwater remote target by estimating the back-scattering coefficient of target is proposed.
正>提出了通过估计目标反向散射系数来探测水下远程目标的一种方法。
The axes of the light rays from the light source (1) and the back-scattering to the light detector (3) have mutually closely adjacent and substantially parallel or coincident portions.
来自光源（1）的光线的轴线以及反向 散射到光检测器（3）的光线的轴线具有彼此紧邻并基本平行或重合的 部分。
Multiresolution analysis is used to estimate the scatterer spacing in biological tissue from the back-scattering signal.
本文研究了从生物组织的背向散射信号中提取散射元间距信息的多分辨率分析方法。
In the experiments, X-ray back-scattering image of the simulated explosives in clothing is acquired, and terahertz spectra of four kinds of representative explosives are measured.
实验采集了衣物中装有模拟爆炸物的X射线背散射图像，并测量了四种典型爆炸物的太赫兹光谱。
This paper presents the principles of the Raman back-scattering effect based temperature sensing and the OTDR (Optical Time-Domain Reflectometry) based positioning.
本文介绍了光纤拉曼散射测温基本原理和基于光时域反射(OTDR)定位原理。
Based on the phenomenon of the frequency shift in Brilluion back-scattering light related to the strain of the optical fiber, a new strain sensing scheme is proposed.
根据光纤中的布里渊散射附加频移与光纤所受的拉伸应变有关的特性，推导了附加频移与应变间的线性关系。
Through the theoretical analysis, a function relation between the back-scattering light intensity and flue-dust concentration under the condition of lower concentration is received.
通过理论分析得出在烟尘浓度较低的情况下散射光强与烟尘浓度函数关系。
Through the theoretical analysis, a function relation between the back-scattering light intensity and flue-dust concentration under the condition of lower concentration is received.
通过理论分析得出在烟尘浓度较低的情况下散射光强与烟尘浓度函数关系。
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