path loss
英 [pɑːθ lɒs]
美 [pæθ lɔːs]
网络 路径损失; 路径衰减; 路径损耗; 路径衰耗; 信道损失
双语例句
- Research on electromagnetic wave propagation models of the path loss in wireless communication system
无线通信系统中电波传播路径损耗模型研究 - Study on Path Loss of Wireless Signaling in Indoor Streets Based on MMSE
基于MMSE法的室内通道无线损耗研究 - Finally, The path loss and field strength has been predicted in typical indoor office environment.
最后，在典型的室内办公环境进行路径损耗和场强预测。 - Wireless Localization Algorithm Based on Path Loss Model Parameter Real-time Estimate
基于路径损耗模型参数实时估计的无线定位方法 - The result shows the path loss is much less affected by terrain than that of ground communication systems.
结果表明，平流层通信系统的传播衰减受地形变化的影响比地面通信系统小得多。 - Forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system.
而精确预测无线电波传播路径损耗特性，则为合理的微蜂窝无线网络规划、设计提供了必要条件，同时也是研究微蜂窝移动通信系统性能的前提。 - We consider the effects of multipath interference, thermal noise, path loss, processing gain and voice activity factor.
考虑了多径干扰、热噪声、路径损耗、处理增益和语音激活因子的影响； - This paper will introduce the channel models for UWB, which include path loss models and multi-path fading models obtained by large measurements and statistical analysis.
本文主要介绍由实验测量和统计分析方法得到的UWB信道模型，包括UWB系统的路径损耗模型和多径衰落模型。 - The simulation of signal path loss along.
在长方形房间中沿着中间移动的信号路径损耗的模拟结果与实验进行了比较。 - Simulation results show that capacity of all kinds of service will decrease rapidly as average path loss increase.
该文还对影响容量的因素进行了仿真，各业务的容量随平均路径损耗的增加急剧下降。 - This text has counted the electric wave propagation path loss of street in one kind of typical rule range urban area, and reaches calculation data fairly with the measured data in the document. Then calculate and analyze electric wave propagation's characteristic in urban area.
本文计算了一种典型的规则排列城市环境中街道的电波传播路径损耗，并与文献中实测及计算数据比较，然后对一种非规则城市环境的电波传播特性进行了分析计算。 - The relationship between multipath overlapping and the path loss is analyzed mathematically.
基于脉冲信号波形特点，分析了接收端多径信号叠加与路径损耗的关系。 - In addition, parallel compensation capacitor groups connected to the bus almost have no effect on the path loss.
变电站母线上的并联补偿电容器组对信道路径损失几乎没有影响。 - In addition, several key factors are analyzed, such as communication range, block in transmission route, path loss due to bad weather and etc., and the Signal Noise Ratio is reckoned.
重点分析了通用数据链的通信距离、传播路径上的阻碍、恶劣天气和大气吸收损耗等传输信道的特性，并对数据链路信噪比进行了估算。 - In this paper, UWB indoor channel models were discussed in time and frequency domain. it's introduced path loss channels and several indoor channel models at small-scale fading.
对超宽带（UWB）室内信道模型在时域和频域进行了讨论，并介绍了在小范围衰落情况下的时域和频域的多种信道模型，以及较实用的路径损耗模型。 - The research results show that path loss models of backscatter RFID systems are differ from traditional wireless communication systems.
研究结果表明，反向散射RFID系统的路径损耗模型和传统无线通信系统的路径损耗模型有所区别。 - In addition, the actual wireless environment is considered when the interference problems caused by the downlink path loss and the slow fading exist.
同时，考虑了下行链路上存在的由路径损耗和慢衰落引起的干扰等问题，改进了目前一些文献中理想的假设条件，使之更符合无线传输的实际情况。 - Firstly, we introduce the characteristic of UWB signal and channel propagation model, and analyze the path loss, multipath delay and other effects on ranging accuracy which provide the mathematical model for the discussion of TOA estimation in the following chapters.
首先，从超宽带特有的信号及信道传播特性入手分析了路径损耗、多径延时等对测距精度的影响，并为后续的TOA估计方法研究提供了数学模型。 - The algorithm is realized with VC++ 6.0 in this paper. This paper has counted the electric wave propagation path loss in a microcellular environment model and the results verify the validity of the ray tracing method.
本文采用VC++6.0作为算法的开发平台，编程实现了该算法，并建立小区环境模型，对电波传播路径损耗进行计算，并对结果进行了分析，验证了该射线跟踪算法的有效性。 - Other parts of the network have little impact on the path loss.
网络其他部分对信道间路径损失的影响较小。 - We do experimental research on the relation between transmitting power and the RSSI to solve the path loss factor in greenhouse on the experimental platform, and then the energy model of virtual MIMO clustering network is created.
在实验平台上对温室环境下节点发射功率与RSSI关系做了实验研究，求解出温室环境中的路径损耗指数，以建立虚拟MIMO的分簇网络能耗模型。 - In this paper, the cluster transmission of radio channel communication system to conduct in-depth study, through the wireless channel experiences multipath transmission and receive radio channel path loss simulation of the signal attenuation characteristics.
本文对集群通信系统的无线信道进行了深入研究，通过对无线信道多径传输和经验路径损耗进行仿真得到无线信道的信号衰减特性。 - Ultimately, fitted the measurement data combined path loss and delay spread model with Matlab, and each of the fitting results was analyzed and compared.
最后利用Matlab平台，结合路径损耗和时延扩展的实际测量数据，对它们进行拟合，并分别分析和比较各个拟合的结果。 - Meanwhile, higher path loss exponent is observed for viaduct with more scatters in the surrounding environment.
同时，周边环境有较多散射体的高架桥会具有较大的路径损耗指数。 - Path loss will degrade the transmitted signal power, and multi path will cause inter-symbol-interference and frequency selective fading.
多径会使传送的数据产生码间串扰或符号间干扰，带来信道的频率选择性衰落，从而降低了通信的质量。 - In this thesis the BER performance of relay selection with decode and forward using path loss model is analyzed. The bit error rate performance of Rayleigh fading channel is compared with Additive white Gaussian noise channel.
在这篇论文中，对使用路径损耗模型的解码转发的中继选择算法的误码率性能进行了分析，比较了瑞利衰落信道和加性高斯白噪声信道下的误比特率。 - In communication systems, shadowing, path loss and multipath seriously affect the transmission rate and quality of service.
在实际的通信系统中，阴影衰落、路径损耗和多径效应等严重影响了通信的传输速率和服务质量。 - The major work and conclusions of this dissertation can be detailedly described as follows: Chapter 2 studies uplink/ downlink resource allocation in the special OFDM system, where different users have equal path loss.
现将本文的主要工作和得到的相应结论详细叙述如下：第2章研究了相同路径损耗下OFDM系统资源分配，研究内容分为上行和下行两个方面。 - Due to multipath fading, shadowing and path loss effects, the channel quality in time, frequency and space will generate random variations, leading to the decline in the quality of wireless communications.
由于多径衰落、阴影和路径损耗等的干扰，信道质量在时间、频率和空间上将产生随机不确定性，导致无线通信质量下降。 - Secondly, through modeling the channel in time domain, the characters of wave propagation are got. And the impulse response in time domain of channel is obtained by using CLEAN algorithm. Meanwhile, the delay parameter, multipath parameter and path loss are analyzed.
第二，通过对信道进行时域确定性建模得出信道的电波传播特性，并通过CLEAN算法得到信道的时域冲激响应，同时对信道的时延参数、多径参数和路径损耗进行了分析。