propagation loss
英
美
传播功率损耗
双语例句
- Digital Camera Photographing in Measuring Propagation Loss Properties of Ion-exchange Planar Optical Waveguides
离子交换交联葡聚糖数码照相法测量离子交换平面光波导损耗特性 - Sensitivity experimentation and error analysis of electromagnetic propagation loss in ocean waveguide
海洋上大气波导中电磁波传播损耗的误差分析和敏感性试验 - The measurements of optical-waveguide mode and propagation loss indicate that the film is of good optical waveguide properties with low loss.
膜表面粗糙度很小。光波导模式和光损耗测量表明膜具有较低的损耗。 - Propagation Loss and Application Research in Symmetrical Metal-Cladding Optical Waveguide with Sub-Millimeter Scale
亚毫米尺度对称金属包覆波导损耗特性的研究及应用 - Research and simulation analysis on missile-borne mobile propagation loss model
移动通信信道损耗模型研究及仿真分析 - The dispersion and propagation loss can be reduced significantly by properly choosing the thicknesses of the two magnetic films and separation layer.
分析了两个磁性层和间隔层的厚度对静磁后向体波色散和传播损耗的影响。 - EM-field simulations with momentum are performed to estimate the important parameters of the transmission lines, such as characteristic impedance and propagation loss.
通过Momentum等电磁场仿真软件计算了传输线的基本参数，例如特征阻抗和衰减常数。 - On the other hand, we use the elbow pieces instead of complex ports to reduce acoustic propagation loss.
另一方面，设想在实际测液位过程中采用弯管代替油井的端口，以减小发射端口处的声能损失，达到减小整个过程的传播损失的目的。 - A Hybrid Model for Propagation Loss Prediction in Tunnels
预测隧道中传播损耗的混合模型 - Based on Fock's diffraction fields theory, a simple propagation loss approximation for radio wave propaga-tion over the smooth sea is presented.
利用Fock关于地波绕射场的理论，介绍了一个电波沿光滑海面传播损耗的简单计算公式。 - Experimental Research of the Propagation Loss in the Forest Environment
丛林环境传播损耗实验研究 - A propagation loss prediction algorithm of stratospheric communication system based on topographic information is presented in this paper. The program of the algorithm aided by computer is described. And the relation of the propagation and the topographic information is analyzed.
提出了一种基于地形信息的平流层通信系统传播损耗预测算法，给出了预测算法的计算机实现，并且对平流层通信传播损耗与地形关系的仿真结果进行了分析。 - Based on the signal model and the multipath channel model of CDMA, amplitude attenuation factors of the signals for indoor users arriving at reference points of known locations are estimated. Then the distances between users and reference points are obtained based on the indoor propagation loss model.
根据CDMA信号模型和多径信道模型，估计室内用户信号到达已知位置的参考点的幅度衰减系数，然后根据室内传播损耗模型得到用户与参考点的相对距离，再利用参考点位置对用户进行定位。 - Finally, propagation loss is described to theoretic sustainlink budget at system design.
最后本章给出了短波信道的传输损耗以利于系统设计时进行链路预算。 - The active sonar equation and the definitions of propagation loss and reverberation level
主动声纳方程和传播损失及混响级的定义 - Uncertain factor that influences the coupling coefficient of this coupler is analysed, the origin of propagation loss of this porous silicon waveguide is determined also.
给出了耦合器耦合系数不确定的因素，同时也分析了多孔硅波导传输损耗形成的原因。 - By analyzing the model of radio wave propagation loss and empirical data from real measurement, our idea is to use discrete linear lines to approximate the real attenuation of RSSI and LQI.
其思想就是通过对无线电传播路径损耗模型以及大量实测数据的分析，用分段线性逼近的方法得到RSSI、LQI这2者与传播距离的衰落曲线。 - By analyzing the model of radio wave propagation loss, this paper provides a weighted centroid localization algorithm that uses coefficients, which are decided by the influence of beacons to unknown nodes, to prompt localization accuracy.
文中通过对无线电传播路径损耗模型的分析，提出了加权质心定位算法，用信标节点对未知节点的不同影响力来确定加权因子，以提高定位精度。 - Making use of the fruits of electromagnetic wave propagation model and computer graphics, this article simulated the probability of radar detection and give a kind of visual method which can visualize the probability of radar detection and the propagation loss.
文中以电磁波传播为研究对象，利用电波传播模式和计算机图形学的现有成果，对雷达探测概率进行仿真研究，给出了雷达探测概率的一种可视化方法。 - Reducing propagation loss and increasing Ce3+, Bi3+ content can enlarge the figure of merit.
降低吸收损耗和增大Ce、Bi离子含量可以增大石榴石薄膜的磁光优值。 - The principles of the common methods to measurement the propagation loss of the NLO polymer film optical waveguide are summarized, and the typical experimental arrangements are presented. A comparison of the characteristic of these methods is given.
文章综述了测量非线性光学（NLO）聚合物薄膜材料光波导传输损耗的三种新方法及原理，分别给出了典型的实验装置结构图，并对它们的特点进行了比较。 - The propagation is proposed to solve the problem that network analysis of the complex environment; and the most influential factor to the model is the propagation loss.
传播模型的提出，正是用来解决复杂环境的网络规划问题；而对模型影响最大的因素就是传播损耗。 - Secondly, analyzes the propagation loss and introduces the algorithm of the loss.
其次针对传播损耗分别进行了分析，并着重对求解损耗的算法进行了介绍。 - We perform the prism coupling method to measure the dark modes and reconstruct the refractive index profile of the planar waveguide by the reflectivity calculation method ( RCM). A typical end-face arrangement is utilized to measure the near-field intensity distribution and the propagation loss.
利用棱镜耦合测量了该平面光波导的暗模特性并利用RCM拟合得到其折射率分布，利用端面耦合的方法测量了波导的近场光强分布以及传输损耗。 - As the basis of design of wireless systems and the channel modeling theory, this article introduced the mobile radio channel propagation characteristics from three approaches which are the average propagation loss, macroscopic fading and micro are fading.
作为无线信道建模的基础理论，同时也是无线系统设计的理论基础，本文从平均传播损耗、宏观衰落、微观衰落三个方面介绍了移动无线信道的传播特性。 - Then we simulate echo interference route of the two ionospheric propagation mode, and the whole propagation loss of each path. Thirdly, we use the backward scattering energy algorithm to compute the ionospheric echo energy in the target unit distance.
仿真分析了两种电离层传播模式下电离层回波干扰路径，以及各个路径的传播损耗，并应用后向返回散射能量算法计算了目标距离单元内的电离层回波能量。 - On the condition of given parts of parameters, the article have calculated the electromagnetic wave propagation loss. Also compared the electromagnetic wave transmission loss between the standard atmospheric environment and the evaporation duct environment.
计算了在给定参数条件下电磁波传输损耗，并比较了在蒸发波导环境和在标准大气环境中的电磁波传输损耗。 - Both the large-scale fading containing the propagation loss and log-normal distributed shadowing and the small-scale fading adopting the Rayleigh fading model are considered as the channel model.
信道模型同时考虑了大尺度衰落和小尺度衰落：大尺度衰落采用路径损耗和阴影衰落相结合的模型；小尺度衰落采用瑞利衰落模型。