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Communication Satellite Antennas System Architecture Technology And Evaluation

Author: Robert Dybdal
Publisher: McGraw Hill Professional
ISBN: 0071609199
Size: 15.12 MB
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A Practical Approach To Antenna Technology For Communication Satellites This authoritative resource discusses antenna technology for communication satellites, addressing both the space and user segments. The book provides a system view of antenna applications, a description of various antenna technologies, and guidance on methodologies for antenna evaluation. Communication Satellite Antennas begins with an overview of the parameters that characterize antennas, and goes on to cover the antenna designs, technologies, and system architectures required for communication satellite systems. Techniques to mitigate interference are covered, and the processes used in the development and characterization of antenna systems are reviewed. Discover how to: Adhere to the system parameters used to quantify antenna performance Understand the technologies used in wide coverage, earth coverage, narrow coverage, and array antennas Work within standard communication satellite system architectures and orbital alternatives Address propagation limitations and link performance Implement reliable antenna interference mitigation techniques Develop space segment antennas, including spot beam, multiple beam, adaptive uplink, active aperture, and point-to-point antennas Apply user segment technologies, such as reflector antenna technology, antenna sidelobe control techniques, and adaptive interference cancellation systems Evaluate satellite antennas and systems using rigorous methodologies

Antenna Theory And Design

Author: Warren L. Stutzman
Publisher: John Wiley & Sons
ISBN: 0470576642
Size: 62.20 MB
Format: PDF, ePub, Docs
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Stutzman's 3rd edition of Antenna Theory and Design provides a more pedagogical approach with a greater emphasis on computational methods. New features include additional modern material to make the text more exciting and relevant to practicing engineers; new chapters on systems, low-profile elements and base station antennas; organizational changes to improve understanding; more details to selected important topics such as microstrip antennas and arrays; and expanded measurements topic.

Satellite Communication Engineering

Author: Michael Olorunfunmi Kolawole
Publisher: CRC Press
ISBN: 9780203910283
Size: 64.20 MB
Format: PDF, Mobi
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Highlighting satellite and earth station design, links and communication systems, error detection and correction, and regulations and procedures for system modeling, integrations, testing, and evaluation, Satellite Communication Engineering provides a simple and concise overview of the fundamental principles common to information communications. It discusses block and feedback ciphering; covers orbital errors; evaluates multi-beam satellite networks; illustrates bus, electrical, and mechanical systems design; analyzes system reliability and availability; elucidates reflector/lens, phased array, and helical antenna systems; explores channel filters and multiplexers; and more.

Black Enterprise

Author:
Publisher:
ISBN:
Size: 31.95 MB
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BLACK ENTERPRISE is the ultimate source for wealth creation for African American professionals, entrepreneurs and corporate executives. Every month, BLACK ENTERPRISE delivers timely, useful information on careers, small business and personal finance.

Network Dictionary

Author: Javvin Www Networkdictionary Com
Publisher: Javvin Technologies Inc.
ISBN: 1602670005
Size: 43.55 MB
Format: PDF, Kindle
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Whether the reader is the biggest technology geek or simply a computer enthusiast, this integral reference tool can shed light on the terms that'll pop up daily in the communications industry. (Computer Books - Communications/Networking)

Satellite Communications Payload And System

Author: Teresa M. Braun
Publisher: John Wiley & Sons
ISBN: 1118345207
Size: 53.22 MB
Format: PDF, Mobi
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This is the first book primarily about the satellite payload ofsatellite communications systems. It represents a uniquecombination of practical systems engineering and communicationstheory. It tells about the satellites in geostationary andlow-earth orbits today, both the so-called bent-pipe payloads andthe processing payloads. The on-orbit environment, mitigated by thespacecraft bus, is described. The payload units (e.g. antennas andamplifiers), as well as payload-integration elements (e.g.waveguide and switches) are discussed in regard to how they work,what they do to the signal, their technology, environmentsensitivity, and specifications. At a higher level are discussionson the payload as an entity: architecture including redundancy;specifications--what they mean, how they relate to unitspecifications, and how to verify; and specification-complianceanalysis (“budgets”) with uncertainty. Aspects ofprobability theory handy for calculating and using uncertainty andvariation are presented. The highest-level discussions, on theend-to-end communications system, start with a practicalintroduction to physical-layer communications theory. Atmosphericeffects and interference on the communications link are described.A chapter gives an example of optimizing a multibeam payload viaprobabilistic analysis. Finally, practical tips on systemsimulation and emulation are provided. The carrier frequenciestreated are 1 GHz and above. Familiarity with Fourier analysis willenhance understanding of some topics. References are providedthroughout the book for readers who want to dig deeper. Payload systems engineers, payload proposal writers,satellite-communications systems designers and analysts, andsatellite customers will find that the book cuts their learningtime. Spacecraft-bus systems engineers, payload unit engineers, andspacecraft operators will gain insight into the overall system.Students in systems engineering, microwave engineering,communications theory, probability theory, and communicationssimulation and modelling will find examples to supplementtheoretical texts.

Applications Of Satellite Technology To Broadband Isdn Networks

Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722948825
Size: 56.31 MB
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Two satellite architectures for delivering broadband integrated services digital network (B-ISDN) service are evaluated. The first is assumed integral to an existing terrestrial network, and provides complementary services such as interconnects to remote nodes as well as high-rate multicast and broadcast service. The interconnects are at a 155 Mbs rate and are shown as being met with a nonregenerative multibeam satellite having 10-1.5 degree spots. The second satellite architecture focuses on providing private B-ISDN networks as well as acting as a gateway to the public network. This is conceived as being provided by a regenerative multibeam satellite with on-board ATM (asynchronous transfer mode) processing payload. With up to 800 Mbs offered, higher satellite EIRP is required. This is accomplished with 12-0.4 degree hopping beams, covering a total of 110 dwell positions. It is estimated the space segment capital cost for architecture one would be about $190M whereas the second architecture would be about $250M. The net user cost is given for a variety of scenarios, but the cost for 155 Mbs services is shown to be about $15-22/minute for 25 percent system utilization. Price, Kent M. and Kwan, Robert K. and Chitre, D. M. and Henderson, T. R. and White, L. W. and Morgan, W. L. Unspecified Center BROADBAND; COMMUNICATION NETWORKS; SATELLITE COMMUNICATION; SATELLITE NETWORKS; TECHNOLOGY ASSESSMENT; TECHNOLOGY UTILIZATION; BROADCASTING; COST ESTIMATES; DIGITAL SYSTEMS; MULTIBEAM ANTENNAS; PACKET SWITCHING; SERVICES; SPACECRAFT DESIGN; USER REQUIREMENTS...

Global Mobile Satellite Systems

Author: Peter A. Swan
Publisher: Springer Science & Business Media
ISBN: 1461503299
Size: 72.53 MB
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Global Mobile Satellite Systems - A Systems Overview makes mobile satellite communications understandable for communication engineers, candidates for an engineering degree, technicians, managers, and other decision makers such as financiers and regulators. It provides a systems oriented top-level view of mobile satellite communications. In particular, it focuses on Global Mobile Satellite Systems (GMSS) including active programs such as Globalstar, IRIDIUM, ORBCOMM, ACeS, and Thuraya, or so-called the second generation mobile satellite systems class. The authors start with a brief description of three generations of satellite systems in use or planned in the telecommunications industry. Selected systems architectural trades are identified and explained to illustrate how various GMSS systems are formulated, developed and evaluated. It includes an examination of market demand trends, business trades, regulatory issues as well as technical considerations. Major issues are examined in trade study style to provide easy access to key information. Key systems drivers such as orbit trades between LEO's, MEO's, and GEO's, frequency, protocols, customer bases, and regulatory and engineering issues are included. This book should appeal to individuals interested in the basic elements of Global Mobile Satellite Systems.