SATELLITE COMMUNICATIONS SATELLITE COMMUNICATIONS - AN OVERVIEW INTRODUCTION The outer space has always fascinated people on the earth and communication through space evolved as an offshoot of ideas for space travel. The earliest idea of using artificial satellites for communications is found in a science fiction Brick Moon by Edward Evert Hale‚ published in 1869-70. While the early fictional accounts of satellite and space communications bear little resemblance to the technology as it exists
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Satellite communication‚ in telecommunications‚ is the use of artificial satellites to provide communication links between various points on Earth. Satellite communications play a vital role in the global telecommunications system. Approximately 2‚000 artificial satellites orbiting Earth relay analog and digital signals carrying voice‚ video‚ and data to and from one or many locations worldwide. Satellite communication has two main components: the ground segment‚ which consists of fixed or mobile
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History of Satellite Communications The first idea of satellite communication came from an article in 1945 named Wireless World‚ where Author C. Clarke described the use of manned satellites in 24 hour orbits to distribute television programs. However‚ the first person to carefully evaluate the technical and financial aspects of such a venture was John R. Pierce of Bell Telephone Laboratories (Whalen‚ n.d.). In a 1954 speech and 1955 article‚ Pierce described the usefulness of a communications
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Satellite Communication Engineering Michael O. Kolawole Jolade Pty. Ltd. Melbourne‚ Australia Marcel Dekker‚ Inc. TM New York • Basel Copyright © 2002 by Marcel Dekker‚ Inc. All Rights Reserved. ISBN: 0-8247-0777-X This book is printed on acid-free paper. Headquarters Marcel Dekker‚ Inc. 270 Madison Avenue‚ New York‚ NY 10016 tel: 212-696-9000; fax: 212-685-4540 Eastern Hemisphere Distribution Marcel Dekker AG Hutgasse 4‚ Postfach 812‚ CH-4001 Basel‚ Switzerland tel: 41-61-261-8482; fax: 41-61-261-8896
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Recent Trends in Wireless Radio and Satellite Communication Gori Shankar1‚ Rajiv Kumar2 Suresh Gyan Vihar University‚ M.Tech (VLSI) 1 ‚Jaipur Engg. College‚ B.Tech (ECE) 2 gssharma1951@gmail.com‚rajivresnick@gmail.com Abstract- In this paper we discussed satellite and radio communication links. Satellites have evolutionized communication. Satellite and radio communication has served mankind in many
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Communication Satellites Introduction Communications Satellites have been around since 1958. A communications satellite is a spacecraft that orbits the Earth and relays messages‚ radio‚ telephone and television signals. Stations on the ground‚ called earth stations‚ transmit signals to the satellite‚ which then relays the signal to other earth stations. As a newer form of communications‚ communications satellites are very useful in bringing the people in the world together. Communications between
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EDU E. AKPAN REG NO: 05423047 DR. AGBER COMMUNICATION TECHNOLOGY AND SOCIETY (THA 718) FEBRUARY‚ 2007 SATELLITE COMMUNICATION AND SOCIETY IN THE THIRD WORLD INTRODUCTION The importance of communication in any country whether developed or developing is so obvious. Every human society‚ from the most primitive to the most advanced; depend on some form of communication network. It will be virtually impossible for any group of people to define their collective identities or make decisions about
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INTRODUCTION For three decades‚ satellite communications have been used for public switched telephone network (PSTN) and video broadcasting applications. However‚ with daily technology advancements made in society and the requirement for global data connectivity‚ satellites are increasingly being used to provide data communication links at all data rates ranging from 64 Kbps to 155 Mbps (Buchsbaum). Wireless technology allows data to be sent out into space to a satellite and back to earth to provide
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Satellite Telecommunications Network and Telecommunications Concepts 360 September 11‚ 2005 Table of Contents Introduction Satellite Communications History Sputnik Changed Everything America ’s Response Future Trends in Satellite Communications GEO vs. LEO Bent-Pipe Satellite Relay vs. the Switch in the Sky Companies Involved in Satellite Communications Regulatory Issues in Satellite Communications Global implications for the
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of satellite communication systems have been proposed using geosynchronous (GEO) satellites‚ as well as low earth orbit (LEO) constellations operating in the Ka-band and above. At these frequencies satellite networks are able to provide broadband services requiring wider bandwidth than the current services at C or Ku-band. As a consequence‚ some of the new services gaining momentum include mobile services‚ private intranets and high data rate internet access carried over integrated satellite-fiber
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