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书籍 Practical+Guide+to+MIMO
The purpose of this book is to introduce the concept of the Multiple Input Multiple Output
(MIMO) radio channel, which is an intelligent communication method based upon using
multiple antennas. The book opens by explaining MIMO in layman’s terms to help stu-
dents and people in industry working in ...
书籍 Visible Light Communication
Visible light communications (VLC) is the name given to an optical wireless
communication system that carries information by modulating light in the visible spectrum
(400–700 nm) that is principally used for illumination [1–3]. The communications signal
is encoded on top of the illumination light. ...
书籍 Power+Electronic+Modules+Design+Manufacture
A power semiconductor module is basically a power circuit of different
materials assembled together using hybrid technology, such as semiconduc-
tor chip attachment, wire bonding, encapsulation, etc. The materials
involved cover a wide range from insulators, conductors, and semiconduc-
tors to organ ...
单片机编程 USB Demonstration for DK3200 w
The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 MicrocontrollerCore. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementationof the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revis ...
单片机编程 87C576微控制器的在线编程
The 87C576 includes two separate methods of programming theEPROM array, the traditional modified Quick-Pulse method, and anew On-Board Programming technique (OBP).Quick Pulse programming is a method using a number of devicepins in parallel (see Figure 1) and is the traditional way in which87C51 fami ...
无线通信 智能天线技术在基站中的应用
为了能够满足基站易于选址、优质快速的建站要求和易维护、低成本、高可靠的运行要求，本文对以方舱来实现一体化结构基站做出一番探讨。从系统设计的观点阐述了移动通信高性能基站天线设计的几个关键问题，介绍了智能天线技术在基站中的应用，并且用HFSS软件仿真了一种新型的对称阵子天线，该天线驻波比小于2的带宽可以达到6 ...
模拟电子 信号链和PLC是如何影响我们的生活
Abstract: It is incredible how many programmable logic controls (PLCs) around us make our modern life possible and pleasant.Machines in our homes heat and cool our air and water, as well as preserve and cook our food. This tutorial explains the importanceof PLCs, and describes how to choose compon ...
模拟电子 在单端应用中采用差分I/O放大器
 
Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total outp ...
电源技术 P54C-VR奔腾(R)微处理器的电源模块
 
Providing power for the Pentium® microprocessor family isnot a trivial task by any means. In an effort to simplify thistask we have developed a new switching regulator controlcircuit and a new linear regulator to address the needs ofthese processors. Considerable time has been spent d ...
单片机编程 基于51单片机的作息号音自动播放器设计
 利用AT89C51型单片机定时和中断功能，配以LM386型音频功率放大器，构成了作息号音自动播放器，为学校和机关管理提供方便。
Abstract:
 Using timing and interrupt function of the AT89C51 single-chip microcomputer and the LM386 audio power amplifier.It is constituted the automatic bugle player.Th ...