Client/server communication, automated telnet sessions, wake on lan, winsock communications using this easy to use component
标签： communications communication automated sessions
上传时间： 2015-06-10
上传用户：钓鳌牧马
用qt3实现的Wake On Lan也就是远程唤醒（远程开机），即通过一台PC向另一台已经关机但仍连接电源PC发送网络数据包，使其开机的功能，前提是两台PC同处一个局域网内，且被唤醒方的网卡支持网络唤醒功能（现在网卡基本上都支持啦）
上传时间： 2016-01-18
上传用户：
Radio propagation measurements and channel modelling continue to be of fundamental importance to radio system design. As new technology enables dynamic spectrum access and higher data rates, radio propagation effects such as shadowing, the presence of multipath and frequency dispersion are the limiting factors in the design of wireless communication systems. While there are several books covering the topic of radio propagation in various frequency bands, there appears to be no books on radio propagation measurements, which this book addresses at length.
标签： Propagation Measurement Radio
上传时间： 2020-06-01
上传用户：shancjb
LAN9254 + SAME54 MCU 从站设计•1.支持2/3个port口的EtherCat Slave控制器，并内置有8个FMMU 和8个SyncManagers; 并有8KB的更大的DPRAM存储资源；•2. 8/16bit总线，支持和大多数8/16bit以及32bit的host MCU通讯； •3. 内部集成了支持HP Auto-MDIX的以太网PHY芯片； •4. 支持Wake on Lan以太网远程唤醒技术；兼容EtherCat P协议； •5. 具有低功耗工作模式，可以允许系统进入睡眠模式以节省更多功耗，直到被Master访问； •6. 支持线缆诊断技术； •7. 支持1.8V~3.3V的灵活可变的IO电压，省去需要外加Voltage shifter芯片的成本； •8. 多功能GPIO，可以配置为Local Bus，SPI, PWM，通用GPIO等多种接口功能； •9. 工业级温度范围，最高可以支持105度工业温度要求；
标签： mcu lan9254 ethercat从站
上传时间： 2021-11-09
上传用户：
MC-CDMA System Using Unitary Space-Time Modulation on Down-link Broadband Mobile Radio Communication
标签： Communicatio Space-Time Modulation Down-link
上传时间： 2013-12-01
上传用户：TF2015
Radio Frequency Integrated Circuit Design I enjoyed reading this book for a number of reasons. One reason is that itaddresses high-speed analog design in the context of microwave issues. This isan advanced-level book, which should follow courses in basic circuits andtransmission lines. Most analog integrated circuit designers in the past workedon applications at low enough frequency that microwave issues did not arise.As a consequence, they were adept at lumped parameter circuits and often notcomfortable with circuits where waves travel in space. However, in order todesign radio frequency (RF) communications integrated circuits (IC) in thegigahertz range, one must deal with transmission lines at chip interfaces andwhere interconnections on chip are far apart. Also, impedance matching isaddressed, which is a topic that arises most often in microwave circuits. In mycareer, there has been a gap in comprehension between analog low-frequencydesigners and microwave designers. Often, similar issues were dealt with in twodifferent languages. Although this book is more firmly based in lumped-elementanalog circuit design, it is nice to see that microwave knowledge is brought inwhere necessary.Too many analog circuit books in the past have concentrated first on thecircuit side rather than on basic theory behind their application in communications.The circuits usually used have evolved through experience, without asatisfying intellectual theme in describing them. Why a given circuit works bestcan be subtle, and often these circuits are chosen only through experience. Forthis reason, I am happy that the book begins first with topics that require anintellectual approach—noise, linearity and filtering, and technology issues. Iam particularly happy with how linearity is introduced (power series). In therest of the book it is then shown, with specific circuits and numerical examples,how linearity and noise issues arise.
上传时间： 2014-12-23
上传用户：han_zh
The aim of this book is to provide the reader with a thorough grounding in the General Packet Radio Service – GPRS.The introduction contains a basic review of GSM to ensure that the reader is clear on the main aspects of circuit switched technology, as this will make the differences and advantages of packet oriented GPRS both more apparent and easier to understand.
标签： grounding the thorough General
上传时间： 2016-03-30
上传用户：康郎
Squaring circuits are an important building block for impulse-radio UWB non-coherent receivers. This work proposes a squarer, based on the quadratic law of saturated transistors. Such a circuit has already been proposed for lower frequency applications, therefore this work focuses on the extension to ultra wide bandwidth, with particular care to the consequences related to the deviation from the ideal quadratic law of 0.18μm CMOS transistors.
标签： impulse-radio non-coherent important receivers
上传时间： 2013-12-24
上传用户：kikye
This book provides the reader with the basics in radio engineering, the techniques needed to generate, control, detect, and use radio waves. The text approaches the relevant problems both from the electromagnetic theory based on Maxwell抯 equations and from the circuit theory based on Kirchoff and Ohm抯 laws. Brief introductions to the electromagnetic theory as well as to the circuit theory are provided. Besides passive transmission lines and components, active RF circuits are also addressed.
标签： the engineering techniques provides
上传时间： 2014-01-17
上传用户：rocketrevenge
The goal of this thesis is the development of traffic engineering rules for cellular packet radio networks based on GPRS and EDGE. They are based on traffic models for typical mobile applications. Load generators, representing these traffic models, are developed and integrated into a simulation environment with the prototypical implementation of the EGPRS protocols and models for the radio channel, which were also developed in the framework of this thesis. With this simulation tool a comprehensive performance evaluation is carried out that leads to the traffic engineering rules.
标签： development engineering cellular traffic
上传时间： 2014-01-11
上传用户：Miyuki
