首先分析了雷达目标散射信号特征。
At first, the radar target scattering signal characteristics are analyzed.
瞬态声散射信号包含有较丰富的目标信息。
Transient acoustic scattering contains rich information about objects.
该模型可给出弹目交会过程中目标散射信号。
The model can give target scattering signal during projectile target crossing.
超声背散射信号能提供反映组织微结构的有用信息。
Ultrasonic backscattered signals can provide useful information about tissue microstructures.
当材料中孔隙达到一定尺寸时，可形成超声散射信号。
Ultrasonic backscatter signals may be observed when the size of a porosity is large enough.
用OTDR测试光纤线路时，其背向瑞利散射信号曲线上常出现幻峰。
There may be unreal peaks on backscattering signal curve in the measurement of optical fiber links by OTDR.
为了定量研究树木散射信号特性，还建立了树木散射信号的数学模型。
A mathematical model of scattering from trees is built up to quantitatively investigate the scattering characteristics of the trees.
目的：验证商用超声诊断仪所测定的心肌背向散射信号强度的可靠性。
Objective: To testify the reliability of myocardial backscatter intensity measured by commercial ultrasonography.
被测颗粒的散射信号幅度与它在探测区中的位置、颗粒尺寸和形状有关。
The amplitude of a received scattering signal depends on the position of the scattering particle in the measurement volume, as well as the dimensions and shape of the particle.
云和降水粒子的非球形性质是引起雷达散射信号产生退偏振的主要因素。
The major factor which produces the depolarization of radar scattering signals is the non-spherical properties of hydrometeors.
用边缘探测技术测量水中的布里渊散射信号，可以得到很高的测量精度。
The signal estimate and statistical error analysis for edge technique is made in details in this paper.
研究了扫描角度误差、气溶胶后向散射信号、大气温度对风场探测精度的影响。
The effects of scanner uncertainty, the aerosol backscatter and atmospheric temperature on wind accuracy of the wind lidar were evaluated.
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。
Multiresolution analysis is used to estimate the scatterer spacing in biological tissue from the back-scattering signal.
提出了阈值检测、降噪处理和功率谱估计三种分析和处理水中气泡激光散射信号的方法。
Three methods for analyzing and processing the laser scattering signal of bubbles in water, the threshold detection, noise elimination processing and power spectral estimation, are put forward.
在实验的基础上提出了一种用激光后向散射信号的幅度谱进行探测和识别气泡的新途径。
After the spectral analysis of back scattering we can identify the bubbles by the differences between bubbles and water.
用统计方法研究了随机取向偶极子云的后向散射信号的频谱和极化特性、并给出数字结果。
The spectral and polarizing characteristics of radar echoes from random orientation of dipole scatterers are investigated using statistical method and the numerical results are given.
声背散射现象的出现是原油中蜡晶析出的直接标志，用声背散射信号反映蜡晶析出是合适的。
The ultrasonic backscattering can be a proper para meter to reveal the crystallization of waxy crude oil.
文章分析了调制脉冲激光雷达探测信号水下传输模型，研究了海水后向散射信号以及目标反射信号的频域特性。
The article analyses the seawater transport model of the modulated-pulse LIDAR signal, and the frequency characteristic of the seawater backscattering signal and target reflecting signal are studied.
本文着重讨论了双光束条纹型激光多普勒测流系统中，光学分束系统参数与散射信号的关系，列出了有关的公式。
The effects of parameters of optical beam splitter on-Doppler signals in a dual beam LDV were discussed, and the formulae about these effects were given.
本文提供了一种用于识别这类随机信号的数学统计模型，并介绍了一种时间平均法用来获取超声背散射信号的衰减系数。
In this paper, a mathematical model is used to characterize this random signals, and a time averaging method is used for obtaining the ultrasonic attenuation coefficient.
不过，话虽如此，是XDR - F1HD50分贝静音射频灵敏度是如此之低，大多数流星散射信号容易收到静音尽管软。
However, having said that, the XDR-F1HD 50 dB quieting RF sensitivity is so low that most meteor scatter signals are readily received despite the soft mute.
基于FM信号的无源雷达目标回波信号信杂比低，频带窄，只有开发大动态范围的接收机才有可能接收到微弱的目标散射信号。
The target echo of passive radar based on FM signal has the characteristics of low SCR and narrow band. Only the receiver with large dynamic range can receive the weak echo signal.
对牛胫骨和人离体跟骨松质骨中的超声背散射信号采用AR倒谱法进行了分析，并估计了牛胫骨和人离体跟骨中骨小梁的平均间距。
The paper applies AR cepstrum to process the backscattered signals of pig liver in vitro, and the mean spacing of hepatic lobules has been estimated.
然而，这种散射光极其微弱，因此只产生一个非常弱的信号。
However, the scattered light is extremely weak and therefore yields a very low signal.
受激喇曼散射使得信号波长就象是更长波长信号通道或者自发散射的喇曼位移光的一个喇曼泵。
Stimulated Raman scattering signal wavelength is like making a longer wavelength signal path or spontaneous Raman scattering of a Raman - displacement pump.
采用两个模拟光源，分别模拟了信号光和后向散射光。
Two light sources were used for simulating the signal and backscatter light respectively.
采用两个模拟光源，分别模拟信号光和后向散射光。
Two light sources are used for simulating the signal and backscatter light respectively.
超宽带雷达具有高分辩能力，它探测到复杂目标时，目标总的电磁散射是多散射中心的合成，回波信号不同于普通的窄带雷达回波。
Ultra wide band radar has high range resolution capability, when UWB signals interact with target, and the responses of target are composed of many separate scattering centers.
超宽带雷达具有高分辩能力，它探测到复杂目标时，目标总的电磁散射是多散射中心的合成，回波信号不同于普通的窄带雷达回波。
Ultra wide band radar has high range resolution capability, when UWB signals interact with target, and the responses of target are composed of many separate scattering centers.
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