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Description: The goal of this simple exercise is to look closely at some RF propagation models, and their implementation in ns2.
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Size: 3182 |
Author: 何星 |
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Description: The goal of this simple exercise is to look closely at some RF propagation models, and their implementation in ns2. -The goal of this simple exercise is to look closely at some RF propagation models, and their implementation in ns2.
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Size: 3072 |
Author: 何星 |
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Description: Processing RF Propagation Coverage Data for Optimized Display and Analysis in a Web-Based Application
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Size: 361472 |
Author: edsie |
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Description: Learn about Ultra-wideband (UWB) transmission - the most talked about application in wireless communications. UWB wireless communication is a revolutionary technology for transmitting large amounts of digital data over a wide spectrum of frequency bands with very low power for a short distance. This exciting new text covers the fundamental aspects of UWB wireless communications systems for short-range communications. It also focuses on more advanced information about networks and applications. Chapters include: Radio Propagation and Large Scale Variations, Pulse Propagation and Channel Modelling, MIMO (Multiple Input, Multiple Output) RF Subsystems and Ad Hoc Networks.
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Size: 5261312 |
Author: kinomira |
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Description: a book on RF propagation-a book on RF propagation...
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Size: 2180096 |
Author: Robin |
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Description: RF propagation measurement in vehicle to vehicle communication
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Size: 52224 |
Author: kesang |
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Description: 本文结合超高频RFID读写器的发展趋势，提出了一种基于EPC Gen2标准的
915MHz超高频RFID读写器设计，并完成了系统测试。涉及的主要工作有：
1．分析了EPC Gen2标准的技术特点和各项指标，研究了UHF RFID读写器的
系统原理和基本结构，详细探讨了整个系统通信链路的传播特点。
2．分析了读写器射频电路。MCU采用单片机C8051F340，射频芯片采用奥地利
微电子的高集成度UHF RFID读写芯片AS3991。完成了硬件电路的搭建和测
试。
3．设计了读写器的软件控制程序。软件程序采用C语言编写。参照EPC Gen2
标准的各项指标，完成了对各个功能模块的仿真测试。-1．Deeply analysizes the EPC Gen2 standard technical characteristics，studys the
principles and basic structure of UHF RFID reader system，discusses the entire system
communication link propagation in detail．
III
中山人学硕．1：学位论文
2．Analysizes and designs the hardware circuits of the reader．MCU uses C805 1 t340 and
the RF chip uses AS3991．Completes the welding and the testing ofhardware circuits．
3．Designes the software control program．Software program uses C language．Referring
to EPC Gen2 standard，completes the simulation testing of different functional
modules of the reader．
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Size: 4340736 |
Author: HY jian |
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Description: Calculation of the path loss is usually called prediction. Exact prediction is
possible only for simpler cases, such as the free space propagation or the flatearth
model, which is called deterministic methods. They based on the physical
laws of wave propagation are also used ray tracing is one such method. These
methods are expected to produce more accurate and reliable predictions of the
path loss than the empirical methods however, they are significantly more
expensive in computational effort and depend on the detailed and accurate
description of all objects in the propagation space, such as buildings, roofs,
windows, doors, and walls.-Calculation of the path loss is usually called prediction. Exact prediction is
possible only for simpler cases, such as the free space propagation or the flatearth
model, which is called deterministic methods. They based on the physical
laws of wave propagation are also used ray tracing is one such method. These
methods are expected to produce more accurate and reliable predictions of the
path loss than the empirical methods however, they are significantly more
expensive in computational effort and depend on the detailed and accurate
description of all objects in the propagation space, such as buildings, roofs,
windows, doors, and walls.
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Size: 265216 |
Author: abicex |
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Description: Book introduction to RF propagation
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Size: 2196480 |
Author: pedrazaluis |
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Description: The goal of this is to look closely at some RF propagation models, and their implementation in ns2. The following models are implemented: Free-Space, TwoRayground, and Shadowing
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Size: 13312 |
Author: asbel |
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Description: A GOOD BOOK ABOUT RF PROPAGATION
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Size: 2180096 |
Author: sahelex |
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Description: 射频（RF）工程是电气工程的一个子集，处理设备，被设计为工作在“无线电频谱。这些器件工作在约3千赫至300赫兹的范围内。
几乎所有的发送或接收无线电波，其中包括，但不限于，手机，对讲机，无线网络和双向无线电射频工程纳入。
RF工程是一个高度专业化的领域，通常在两个领域之一 1）提供或控制某种覆盖天线/传输系统和2）生成或接收信号或从该传输系统等通讯电子设备或控件。要生产质量效果，深入了解数学，物理，通用电子理论以及在波的传播，阻抗变换，滤波器，微带电路板设计等领域的专门培训，可能是必需的。由于射频同时进行，通过典型的导体，以及通过空间的许多方法，初步设计RF电路通常承担最终的优化物理电路非常的相似性很小。倘的设计往往是必需的，以实现预期的结果。-Radio frequency (RF) engineering is a subset of electrical engineering that deals with devices that are designed to operate in the Radio Frequency spectrum. These devices operate within the range of about 3 kHz up to 300 GHz.
RF engineering is incorporated into almost everything that transmits or receives a radio wave, which includes, but is not limited to, Mobile Phones, Radios, WiFi, and two-way radios.
RF engineering is a highly specialized field falling typically in one of two areas 1) providing or controlling coverage with some kind of antenna/transmission system and 2) generating or receiving signals to or from that transmission system to other communications electronics or controls. To produce quality results, an in-depth knowledge of mathematics, physics, general electronics theory as well as specialized training in areas such as wave propagation, impedance transformations, filters, microstrip circuit board design, etc. may be required. Because of the many ways RF is conduct
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Size: 5189632 |
Author: Journey |
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Description: RF Propagation
What is RF propagation?
Why does the network simulation designer care about RF
propagation?
What are the existing RF propagation models available?
Analytical (large and small scale fading)
Simulation tools (large and small scale fading)
Where does network simulation meet RF propagation?
What are general limitations, pitfalls, and lessons learned?
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Size: 1934336 |
Author: D B |
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Description: The challenge for RF engineers is mainly to
understand the complex systems starting
with the transmitter and ending with the
receiver. It is not enough to investigate only
single components of the communications
link. The antennas are an integral part of the
MIMO system. MIMO systems exploit the
multipath structure of the propagation
channel.
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Size: 854016 |
Author: nebiyu |
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