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书籍 Understanding+Optical+Communications

The use of light to send messages is not new. Fires were used for signaling in biblical times, smoke signals have been used for thousands of years and flashing lights have been used to communicate between warships at sea since the days of Lord Nelson. The idea of using glass fibre to carry an optica ...
https://www.eeworm.com/dl/522181.html
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书籍 Understanding+Telecommunications+Networks

Telecommunications is today widely understood to mean the electrical means of communicating over a distance. The first form of telecommunications was that of the Telegraph, which was invented quite independently in 1837 by two scientists, Wheatstone and Morse. Telegraphy was on a point-to-point unid ...
https://www.eeworm.com/dl/522183.html
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书籍 Wireless+Communications+Algorithmic+Techniques

Digital radios have undergone an astonishing evolution in the last century. Born as a set of simple and power-hungry electrical and electromechanical devices for low data rate transmission of telegraph data in the Marconi age, they have transformed, thanks to substantial advances in electronic techn ...
https://www.eeworm.com/dl/522208.html
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书籍 RFID+Security

Radio frequency identification (RFID) is a type of automatic identification systems which has gained popularity in recent years for being fast and reliable in keeping track of the individual objects. In RFID systems, contactless object identification is achieved using radio signals without the need ...
https://www.eeworm.com/dl/522397.html
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书籍 Fundamentals_of_Global_Positioning_System1

The purpose of this book is to present detailed fundamental information on a global positioning system (GPS) receiver. Although GPS receivers are popu- larly used in every-day life, their operation principles cannot be easily found in one book. Most other types of receivers process the input signals ...
https://www.eeworm.com/dl/522420.html
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书籍 Arduino+Workshop+A+Hands-On+Introduction

Have you ever looked at some gadget and wondered how it really worked? Maybe it was a remote control boat, the system that controls an elevator, a vending machine, or an electronic toy? Or have you wanted to create your own robot or electronic signals for a model railroad, or per- haps you’d like t ...
https://www.eeworm.com/dl/522434.html
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书籍 Observers in Control Systems

Control systems are used to regulate an enormous variety of machines, products, and processes. They control quantities such as motion, temperature, heat flow, fluid flow, fluid pressure, tension, voltage, and current. Most concepts in control theory are based on having sensors to measure the quantit ...
https://www.eeworm.com/dl/522470.html
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笔记 音频放大器设计

This design uses Common-Emitter Amplifier (Class A) with 2N3904 Bipolar Junction Transistor. Use “Voltage Divider Biasing” to reduce the effects of varying β (= ic / ib) (by holding the Base voltage constant)  Base Voltage (Vb) = Vcc * [R2 / (R1 + R2)]  Use Coupling ...
https://www.eeworm.com/dl/523081.html
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技术资料 电子书-RTL Design Style Guide for Verilog HDL540页

电子书-RTL Design Style Guide for Verilog HDL540页A FF having a fixed input value is generated from the description in the upper portion of Example 2-21. In this case, ’0’ is output when the reset signal is asynchronously input, and ’1’ is output when the START signal rises. Therefore, the FF da ...
https://www.eeworm.com/dl/831346.html
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技术资料 基于stm32f103c8t6单片机的主从式桌面机械臂的设计

随着科技发展及工业4.0 进程推进,机械臂应用范围越来越广,并演化出各种各样的机械臂,如码垛机械臂、焊接机械臂、装配机械臂以及手术机械臂等。现利用solidworks 进行三维建模,设计制作一款基于stm32f103c8t6 单片机的主从式桌面级机械臂,该机械臂包括一个主动机械臂和一个从动机械臂,采用蓝牙传输信号方式进行同步运动,并且 ...
https://www.eeworm.com/dl/831644.html
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