FIBER-OPTIC COMMUNICATION Introduction Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic waves that is modulated to carry information. First developed in the 1970s‚ fiber-optic communication system have revolutionized the telecommunication industry and have played a major role in the advent of the information over age. Because of its advantages over electrical
Premium Optical fiber Laser
w w w e tr .X m eP UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS GCE Advanced Subsidiary Level and GCE Advanced Level e ap .c rs om MARK SCHEME for the May/June 2010 question paper for the guidance of teachers 9702 PHYSICS 9702/41 Paper 4 (A2 Structured Questions)‚ maximum raw mark 100 This mark scheme is published as an aid to teachers and candidates‚ to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does
Premium General Certificate of Secondary Education Energy Kinetic energy
paper‚ we consider multi-carrier systems with multiple transmit antennas under the power balancing constraint‚ which is defined as the constraint that the power on each antenna should be limited under a certain level due to the linearity of the power amplifier of the RF chain. Applying transmit antenna selection and fixed-power variable-rate transmission per subcarrier as a function of channel variations‚ we propose an implementation-friendly antenna selection method which offers a reduced complexity in
Premium Wireless Modulation
Designing the custom trunk panel and amplifier mount setup‚ subwoofer enclosure‚ and overall audio system was fun stuff. Designing and installing the various components of the security‚ electrical‚ and ignition system was also fun (well‚ it’s better than bodywork). The American Autowire kit certainly
Premium Automobile General Motors Internal combustion engine
MOBILE COMMUNICATION VIA STRATOSPHERE -A REVOLUTION IN THE WIRELESS COMMUNICATIONS g. Krishna teja‚ r. karthik‚ teja.hummer@gmail.com VEC‚ kavali. ABSTRACT: “ANTENNAS MAKE THE RELATIONSHIP AMONG THE PEOPLE THROUGH COMMUNICATION BUT BREAK THE INDIVIDUAL’S RELATIONSHIP WITH THE WORLD THROUGH RADIATION” Today we are in danger due to health hazards caused by mobile radiation. Recent surveys and experts confirmed
Free Mobile phone GSM
MEDC – 301(A) Information Theory & Coding Unit 1 Introduction to uncertainty‚ information‚ entropy and its properties‚ entropy of binary memory less source and its extension to discrete memory less source‚ coding theorem‚ data compression‚ prefix coding‚ HUFFMAN coding‚ Lempel-Ziv Coding Unit 2 Discrete memory less channels‚ Binary symmetric channel‚ mutual information & its properties‚ channel capacity‚ channel coding theorem‚ and its application to BSC‚ Shannon’s theorem on channel capacity
Premium Optical fiber Coding theory Information theory
The output pressure response from this sensor is 10 pC/psi‚ which is then converted by an In-Line Charge Converter (Model 422E35) also from PCB Piezotronics. The inline charge amplifier converts the signal with a gain of 0.99 mV/pC. Therefore‚ the final calibration factor used for converting the transducer signal to pressure is 6.238 mV/psi. Figure 40 shows both the pressure sensor and the charge converter. Figure 40. PCB pressure
Premium Digital signal processing Statistics DNA
fast medium; such that a light ray will ___. a. bend towards the normal b. bend away from the normal c. equal the critical angle d. total internal reflection will occur 6. What is the wavelength an erbium-doped optical-fiber amplifier (EDFA) typically operates? a. 1490 nm b. 1550 nm c. 1310 nm d. 1625 nm 7. How many miles does 1 kilometer equal? a. 0.62 b. 6.2 c. 0.062 d. 62 8. What is the capacity supported by an STS-1 or STM-0
Premium Optical fiber Total internal reflection Refractive index
1 SATELLITE COMMUNICATION – AN INTRODUCTION Contents 1.1 Introduction 1.2 Basics 1.3 Applications of Satellites o Weather Forecasting o Radio and TV Broadcast o Military o Navigation o Global Telephone o Connecting Remote Areas o Global Mobile Communication 1.4 Frequency Allocation of Satellites 1.5 Types of Orbits o GEO o LEO o MEO o Sun Synchronous Orbit o Hohmann Transfer Orbit o Prograde Orbit o Retrograde Orbit o Polar Orbits 1.6 Examples o INTELSAT o U.S. Domsats o Polar Orbiting Satellites
Premium Satellite
Chapter 2 Telecommunications Technology Fundamentals 2.0 Objectives Upon completing this chapter‚ you should be able to: • Define the following terms; transmission lines‚ circuits‚ trunks‚ virtucal circuits‚ bandwidth‚ analog transmission‚ digital transmission‚ internet governance. • Differentiate between; line and trunks‚ PVC and SVC‚ Narrowband‚ wideband and broadband‚ analog and digital transmission‚ codecs and modems and various standards organization bodies. Describe the various circuit types
Premium Digital Modulation Electromagnetic radiation