供了故障定位和结构回波损耗(SRL)测量功能。
For the fault location and structural return loss (SRL) measurement function.
结构回波损耗是通信电缆的重要指标之一，而电缆绝缘线芯的水电容可综合反映生产线上的周期性缺陷。
SRL (structural return loss) is one of the important indicators of telecom cables, while the capacitance in water of cable may reflect the periodic defect of the production line.
但在非均匀风场中，回波结构在运动过程申发生变化，导致该方法的误差大大增加。
In a nonuniform wind field, however, great changes take place in the structure, causing an increase of errors.
目标的材料和结构是产生回波特征的原因。
The material and the structure of target is the reason for producting echo characteristic.
结果表明，在该方法中作为判别因子的相关系数反映了所跟踪回波的结构特征。
It is indicated that the correlation coefficient, which is used as a discriminating factor in the method, is only the reflection of the structure character of the echoes tracked.
在均匀风场情况下，回波结构在运动过程中不发生变化，故用该方法确定的回皮运动精度很高。
The echoes do not change their structure as they move in a uniform wind field so that the method can be used to track the echoes with great accuracy.
概要叙述了一种基于表驱动的、分层结构的、简化的回波算法。
A new wireless echo algorithm is described based on table actuation, stratification and simplification structure.
雷达回波信号奇异点携带了大量地下目标物的信息，是借以分析地下物质结构的重要依据。
The singularities of ground Penetrating Radar (GPR) echo wave signals can show the characters of objects or the layer structures under the ground sufficiently.
得出了在被检测结构一定的条件下，大的回波能量透射系数对应有一最佳检测频率。
In a certain medium structure, the echo energy transmission coefficient changing with the ultrasonic testing frequency is studied and the maximum magnitude is obtained.
薄层结构超声测厚过程中，薄层上下界面回波叠加导致信号难以区分。
It is difficult to recognize the overlapping signal of the front and bottom echoes from the thin layer structure.
但在非均匀风场中，回波结构在运动过程申发生变化，导致该方法的误差大大增加。
In a nonuniform wind field, however, great changes take place in the structure, causing an increase of...
介绍了回波信号模拟设备的自动检查与测试部分的系统结构。
This article introduces the architecture of a self-testing system for echo signal simulator.
回顾了泡沫夹层结构常用的无损检测方法：空气耦合超声方法、脉冲回波超声方法以及激光错位散斑干涉方法。
The popular non destructive test methods for the foam-cored sandwich structure are reviewed; including air coupled ultrasonic method, pulse-echo ultrasonic method and shearogragh method.
文中介绍一种基于PCI总线和DSP (TMS320VC33)的视频回波模拟系统的组成结构和工作原理，提出一种在虚拟目标环境下视频回波模拟的方法。
The architecture and principle of a video echo simulating system based on PCI buses and DSP (TMS320VC33) is introduced, advances a method of simulating video echo in dummy object condition.
用该法在浅海负梯度和均匀层情况下，计算了远程混响和回波、混响比的距离、深度结构。
The range and depth dependence of the long-range reverberation and echo-reverberation ratio were calculated for the cases of negative gradient and homogeneous layers.
结果表明基于基底打孔型方形孔EBG结构的贴片天线的性能最佳，其增益、带宽和输入回波损耗都得到了较大的改善。
Results show that different EBG structures have different effects on the patch antenna. The performance such as gain, bandwidth and return loss of the conventiona…
对流云回波带在初生、成熟和消散三个不同的演变阶段结构特征不同，下垫面对回波带的演变有一定的影响。
Echo band consisting of convective clouds has different echo structure in different evolution stages. Water surface and mountains have an effect on it's evolution.
地物和超折射等非降水回波是影响雷达定量探测降水和其他产品的重要因素，利用降水和非降水回波反射率三维结构特征可以对雷达数据进行质量控制。
Non-precipitation echo from radar such as ground objects echo and super refraction and so on are important to explore quantitatively precipitation and the other products.
海底地层回波数据的成像处理是依据地层剖面仪在海面激发以及水听器接收到的海底地层声纳回波信息来研究海底地层沉积结构的一种方法。
The method of imaging the submarine sediment layers' echo data is to study the geologic structure with the information simulated by a profiler and received by hydrophone streamers at the sea surface.
综合利用超声波、冲击回波、探地雷达等手段研究了凝结硬化早期混凝土内部的结构特征。
Comprehensive utilization of non-destructive methods such as ultrasonic, impact echo and ground penetrating radar to study the characteristics of the internal structural of early hardened concrete.
本文研究了激光雷达相关理论及激光测距方法，基于脉冲激光测距法，给出了一种结构简单，可同时处理多路回波信号的测距电路。
Then this board can provide distance information for bistatic laser radar targeting system. This thesis is devoted to the research on the correlation theory of lidar and the methods of laser ranging.
本文研究了激光雷达相关理论及激光测距方法，基于脉冲激光测距法，给出了一种结构简单，可同时处理多路回波信号的测距电路。
Then this board can provide distance information for bistatic laser radar targeting system. This thesis is devoted to the research on the correlation theory of lidar and the methods of laser ranging.
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