后向散射

后向散射比（Ratio）呈双峰分布，夜间低于白天；SSA峰值的出现在15：00。

The ratio of back scattering coefficient to total scattering coefficient ( ratio ) appeared a bimodal distribution with the higher value in the daytime ; SSA peak value appeared at15:00 .

本文简述了各向异性介质FDTD方法，并用FDTD方法分析了三维各向异性有耗介质板的瞬态后向散射。

Using the FDTD method , the back scattering of a lossy anisotropic plate is analyzed when the plate is illuminated by a plane transient electromagnetic wave .

简要推导了Gaussian粗糙表面的后向散射系数及其退偏度公式。

Meanwhile , the backscattering coefficient and depolarization formulations of Gaussian rough surface have been deduced .

分布式光纤温度传感器所探测到的含有温度信息的Raman后向散射光十分微弱，甚至完全淹没在噪声中。

The back scattering Raman signal with the information of temperature is weak or completely submerged in noise .

电离层后向散射探测中m序列和FH序列的应用

The applications of m sequence and FH sequence to ionospheric backscattering sounding

该算法首先根据自然场景（如海面、场地和森林等）的统计模型产生相关的Gamma分布，得到场景的后向散射系数图；

At the first a correlated gamma-distributed RCS variable is generated according to the statistic model of natural scene .

在此基础上，本文对雷达回波信号的频谱进行了定量分析，证明了回波信号距离向频谱是目标场雷达波后向散射系数矩阵的距离向Chirpz变换。

She proved SAR echo was the Chirp Z-transform of radar backscatter coefficients of target field on range dimension .

利用MoM和LIBC求解材料涂覆导体平板的后向散射

Calculating Backscattering From a Conducting Flat Plate Coated With RAM Using MoM in Conjunction With LIBC

由于大气后向散射比Rb值的变化，导致测量结果有很大的误差。

The error of the measurement caused by the atmospheric back - scattering ratio R_b can 't be ignored .

同时给出了使用m序列和FH序列进行电离层后向散射探测的信号波形及其调制解调电路模块。

Modem circuits and signal waveforms are provided to indicate the detecting procedure of m and FH sequences .

根据星载合成孔径雷达（SAR）浅海水下地形和水深成像机理，建立了浅海水下地形和水深雷达后向散射截面仿真模型。

A simulation model for the radar backscattering cross section of the sea surface has been developed based on the radar imaging mechanism of underwater bottom topography .

混浊介质后向散射Mueller矩阵的一种测量方法

Measurment of Turbid Media ′ s Backscattering Mueller Matrix

研究了在各种CS2介质波导中受激布里渊后向散射的模式特性以及脉宽压缩现象。

The mode characteristics and the pulse compression phenomenon of backward stimulated Brillouin scattering ( SBS ) in CS2 light waveguide of different sizes are investigated .

与单极化SAR相比，它通过测量每个分辨单元在不同收发极化组合下的散射特性，更完整地记录了目标后向散射信息，为详尽分析目标散射特性提供了良好的数据支持。

It obtains scattering characteristics of each resolution cell under different combinations of receiving and transmitting polarization , and records back scattering information of targets more completely than single-polarization SAR .

采用射线跟踪和等效电流等方法计算金属垂直安定面的后向散射场和后向散射截面积（RCS）。

An approximate technique using ray-tracing and equivalent current method is adopted for calculating the backscattering fields and backscattering RCS of metal vertical stabilizers .

SAR的后向散射成像机制决定了SAR图像中存在相干斑噪声，这些相干斑噪声降低了图像质量，掩盖了图像的细节结构，因此在SAR图像处理时通常先对图像进行去噪。

Because of the backscatters , SAR images are contaminated by speckle noises which lower image quality and mask image structure . Therefore , noise-smoothing is the first step in the image processing .

在传统RD模型的基础上，根据不同地形特征（起伏地形和平坦地形）考虑不同的后向散射模型。

Based on the conventional RD model , different backscattering models are applied to simulation for different topographic characteristics , such as alpine terrain or flat terrain .

在低空由于瑞利散射和米散射同时存在，当后向散射比Rb不同时，测风激光雷达校正曲线随Rb不同而不同，因此需要根据不同的Rb选取不同的校正曲线来得到风速。

For both of Rayleigh scattering and Mie scattering exist in lower atmosphere , the backscattering ratio Rb is needed to calibrate the wind speed response curve .

该结果能够合理解释HG相函数所不能描述的生物组织后向散射光增强的实验现象。

These functions provide a sound explanation for the experimental phenomena about the increase of backscattering light from tissue , which can 't be well explained by HG phase function .

利用Phong光照模型来模拟SAR成像中的面散射特性，3D地形模型中每个三角形的反射系数，对应于SAR成像中小面元的后向散射系数。

Using the Phong lighting model to simulate the backscatter characteristics of plane facets . The reflective coefficients of triangles in the 3D terrain model are corresponding to backscatter coefficients of facets .

用自然地表非球形散射体全极化一阶散射的Mueller矩阵解，在选定高空间分辨率条件下，计算具三维空间结构与非均匀分布的植被地表的全极化后向散射。

Employing the Mueller matrix solution of random non-spherical particles , fully polarimetric scattering from heterogeneous canopy surfaces with 3-dimensional spatial structure is calculated .

常规单基地SAS成像基于点目标假设，不考虑合成孔径内目标散射模式（TargetScatteringPatten-TSP）起伏，仅仅接收目标后向散射回波。

The conventional monos-tatic SAS imaging is based on the point target assumption , where the fluctuation of the Target Scattering Patten ( TSP ) within the synthetic aperture is not considered , and only backscatter echo from the target is used .

用X波段微波散射计研究了裸露土壤，有植被（红薯、大豆和花生）覆盖的土壤含水量与微波后向散射系数之间的关系，对X波段与C波段的结果做了分析对比。

In this paper , the relationship between the microwave backscattering coefficient and soil moisture of bare and vegetation ( sweet potato , soybean and peanut ) - covered fields is discussed , and the comparision between the results of X - and C-bands is made .

激光束模式较好时，系统接收到了7.8km处房屋的后向散射信号，经扫频窄带滤波后，信号具有较高的信噪比，此时激光器输出功率约为5W。

The backscattered signals from buildings at 7.8 km are obtained with a fairly good SNR when the laser output is about 5 W.

导出适用于合成孔径雷达（SAR）的基本方程，用于决定回波信号功率、检测前后的信噪比、平均发射功率和噪声等效后向散射系数。

The basic synthetic aperture radar ( SAR ) equations , which are used to determine the echo power , the signal to noise ratio before and after detection , the average transmission power and the noise equated σ° have been derived in detail .

基于Mie散射大气激光雷达，应用Klett算法对回波信号进行了反演，得到大气消光系数和后向散射系数。

By using Mie scattering laser lidar , aerosol extinction coefficient and backscatter coefficient were inverted by using Lidar returns and Klett inversion method .

利用南极地区同季相SAAS（1978）和NSCAT（1996）Ku波段散射计数据进行差分处理，得出后向散射发生显著变化的地区。

Using the Ku band scatterometer data from SAAS ( 1978 ) and NSCAT ( 1996 ) for differential analysis , the regions showing remarkable fluctuations are given .

以94GHz雷达为例，研究了雾的雷达后向散射特性。

As an example , the radar backscattering characteristics at 94 GHz is given .

第二部分介绍了混浊介质、散射和后向散射特性等个基本概念，还就从理论上解决散射问题所用到的数学处理手段如：Stokes矢量、Mueller矩阵进行了详细的阐述。

The second part introduce some basal concept example turbid media , scattering , backscattering quality and so on . It expresses the mathematic tools for the scattering , such as Stokes vector quantity and Mueller matrix .

与传统干涉式光纤陀螺不同，M-Z结构光纤陀螺采用分离光路、前向传输，避免了后向散射、反射光带来的相干噪声以及光学Kerr效应等，从而提高了光功率利用率。

Different with the traditional IFOG , MZ-IFOG use optical path separation , prior to transmission , which avoid the interferometric noises brought by the backward scattering and reflecting light and the Kerr effect noise .