为方便实际测试,REAL实验室的核心是射频衰减网络,可模拟多个无线电的真实部署。
To facilitate realistic testing, the heart of real is the radio frequency attenuation network, a system designed to simulate realistic field conditions for multiple radios.
指出利用沉积有网格图形的钽薄膜电阻的匹配衰减网络作微波吸收体,可以获得比较好的宽带性能。
It is shown that the better broad band performance can be obtained using the matched attenuation network formed by depositing ta film resistor, as a microwave absorbent, with grid pattern.
第二部分讨论稳态响应的线性关系,在论证过程中提出了含有纯电容割集的网络及含有纯电感回路的网络为非衰减网络等几条定理,并进行了比较严谨的证明。
In the course of demonstration, several theorems are posed and proved in detail, such as networks including pure capacitance cut-sets and pure inductance loops are non-decaying, etc.
特别是,公司久负盛名的网络主机业务衰减的势头被认为无可挽回,而个人计算机之类的硬件业务又在迅速地日用化(commodity)。
In particular, the legendary mainframe business was perceived to be in terminal decline, while the firm's hardware (personal computers and the like) were rapidly becoming commodities.
在传统混沌神经网络模型的基础上,提出了一种具有衰减混沌噪声的混沌模拟退火神经网络模型(CSA - DCN)。
Based on deeply discussing the principle of chaotic neural network model, the chaotic simulated annealing model with decaying chaotic noise (CSA-DCN) is presented.
本文在考虑多个参数对雨衰减非线性影响的基础上,建立了基于进化神经网络的雨衰减模型,并与ITU - R模型进行了比较。
Considering the nonlinear affects of various parameters on rain attenuation, we propose a new rain attenuation model based on evolutionary neural network and compare it with the ITU-R model.
本文首先分析了低压电力线网络的特点及信道特性,对电力线信道的噪声和复衰减特性分别进行了测量及分析。
Through this paper, the low-voltage power line network and channel characteristics are researched. The noise and attenuation characteristics of power line channel are measured and analyzed.
提出了一种自适应模糊小波神经网络的滑模控制策略,保证系统的跟踪误差和对外界干扰的抑制被衰减到期望的程度。
An adaptive sliding mode control based on fuzzy wavelet network is proposed to guarantee the effects of the tracking error and external disturbances can be attenuated to a specific attenuation level.
接收概率衰减速度的调节可以控制混沌退火的速度,从而影响网络的收敛速度。
Adjusting the probability of acceptance could control the speed of chaos simulated annealing, and influence the rate of convergence.
模拟衰减器在射频和微波网络中有广泛的应用,可用砷化镓mmics和PIN二极管网络实现。
Simulant attenuator has been widely applied in microwave and radio networks with MMICS and PIN diode networks.
可调光衰减器(VOA)是广泛应用于光通信网络及光纤实验系统中的光无源器件。
The Variable optical Attenuator (VOA) is a kind of passive device that find wide application in optical communication network and optical fiber test system.
本文提出利用任意三端口网络和可变衰减器测量复反射系数的新方法。
This paper presents a new method of measuring complex reflection coefficient using an Arbitrary three-port network and a variable attenuator.
陈述了利用扫频信号源、标量网络分析仪和宽带喇叭天线等构成的系统对微波衰减测量的过程,对该方法的诊断误差进行了讨论。
The process of attenuation measurement is presented, which utilizes a system consisted of a sweep oscillator, a pair of broad-banded horns, and a scalar network analyzer, etc.
针对双总线形、星形、环形和双环形四种光纤网络拓扑,比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
针对双总线形、星形、环形和双环形四种光纤网络拓扑,比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
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