communication satellite antennas system architecture technology and evaluation

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Communication Satellite Antennas System Architecture Technology And Evaluation

Author : Robert Dybdal
ISBN : 9780071609197
Genre : Technology & Engineering
File Size : 53. 84 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

Black Enterprise

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File Size : 51. 96 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.

Satellite Communication Engineering

Author : Michael Olorunfunmi Kolawole
ISBN : 0203910281
Genre : Technology & Engineering
File Size : 25. 41 MB
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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.

Network Dictionary

Author : Javvin Www Networkdictionary Com
ISBN : 9781602670006
Genre : Computers
File Size : 31. 91 MB
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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
ISBN : 9781118345207
Genre : Science
File Size : 31. 4 MB
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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.

Publications Of The National Institute Of Standards And Technology Catalog

Author : National Institute of Standards and Technology (U.S.)
ISBN : UIUC:30112101561220
Genre :
File Size : 70. 89 MB
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Antenna Arrays And Automotive Applications

Author : Victor Rabinovich
ISBN : 9781461410744
Genre : Technology & Engineering
File Size : 47. 19 MB
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This book throws a lifeline to designers wading through mounds of antenna array patents looking for the most suitable systems for their projects. Drastically reducing the research time required to locate solutions to the latest challenges in automotive communications, it sorts and systematizes material on cutting-edge antenna arrays that feature multi-element communication systems with enormous potential for the automotive industry. These new systems promise to make driving safer and more efficient, opening up myriad applications, including vehicle-to-vehicle traffic that prevents collisions, automatic toll collection, vehicle location and fine-tuning for cruise control systems. This book’s exhaustive coverage begins with currently deployed systems, frequency ranges and key parameters. It proceeds to examine system geometry, analog and digital beam steering technology (including "smart" beams formed in noisy environments), maximizing signal-to-noise ratios, miniaturization, and base station technology that facilitates in-car connectivity while on the move. An essential guide for technicians working in a fast-developing field, this new volume will be warmly welcomed as a powerful aid in their endeavors.

Congressional Record V 149 Pt 10 May 22 2003 To June 9 2003

Author : U S Congress
Genre : Political Science
File Size : 82. 69 MB
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Global Mobile Satellite Systems

Author : Peter A. Swan
ISBN : 9781461503293
Genre : Technology & Engineering
File Size : 35. 98 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.

Realizing The Potential Of C4i

Author : Committee to Review DOD C4I Plans and Programs
ISBN : 9780309518734
Genre : Political Science
File Size : 30. 8 MB
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Rapid progress in information and communications technologies is dramatically enhancing the strategic role of information, positioning effective exploitation of these technology advances as a critical success factor in military affairs. These technology advances are drivers and enablers for the "nervous system" of the military—its command, control, communications, computers, and intelligence (C4I) systems—to more effectively use the "muscle" side of the military. Authored by a committee of experts drawn equally from the military and commercial sectors, Realizing the Potential of C4I identifies three major areas as fundamental challenges to the full Department of Defense (DOD) exploitation of C4I technology—information systems security, interoperability, and various aspects of DOD process and culture. The book details principles by which to assess DOD efforts in these areas over the long term and provides specific, more immediately actionable recommendations. Although DOD is the focus of this book, the principles and issues presented are also relevant to interoperability, architecture, and security challenges faced by government as a whole and by large, complex public and private enterprises across the economy.

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