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 : 78. 8 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
ISBN : 9780470576649
Genre : Technology & Engineering
File Size : 28. 93 MB
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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
ISBN : 0203910281
Genre : Technology & Engineering
File Size : 54. 54 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.

Black Enterprise

Author :
Genre :
File Size : 40. 98 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
ISBN : 9781602670006
Genre : Computers
File Size : 25. 34 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)

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 : 90. 89 MB
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Satellite Communications Payload And System

Author : Teresa M. Braun
ISBN : 9781118345207
Genre : Science
File Size : 90. 50 MB
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This is the first book primarily about the satellite payload of satellite communications systems. It represents a unique combination of practical systems engineering and communications theory. It tells about the satellites in geostationary and low-earth orbits today, both the so-called bent-pipe payloads and the processing payloads. The on-orbit environment, mitigated by the spacecraft bus, is described. The payload units (e.g. antennas and amplifiers), 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, environment sensitivity, and specifications. At a higher level are discussions on the payload as an entity: architecture including redundancy; specifications--what they mean, how they relate to unit specifications, and how to verify; and specification-compliance analysis (“budgets”) with uncertainty. Aspects of probability theory handy for calculating and using uncertainty and variation are presented. The highest-level discussions, on the end-to-end communications system, start with a practical introduction to physical-layer communications theory. Atmospheric effects and interference on the communications link are described. A chapter gives an example of optimizing a multibeam payload via probabilistic analysis. Finally, practical tips on system simulation and emulation are provided. The carrier frequencies treated are 1 GHz and above. Familiarity with Fourier analysis will enhance understanding of some topics. References are provided throughout the book for readers who want to dig deeper. Payload systems engineers, payload proposal writers, satellite-communications systems designers and analysts, and satellite customers will find that the book cuts their learning time. Spacecraft-bus systems engineers, payload unit engineers, and spacecraft operators will gain insight into the overall system. Students in systems engineering, microwave engineering, communications theory, probability theory, and communications simulation and modelling will find examples to supplement theoretical texts.

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

Author : U S Congress
Genre : Political Science
File Size : 45. 38 MB
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Applications Of Satellite Technology To Broadband Isdn Networks

Author : National Aeronautics and Space Administration (NASA)
ISBN : 1722948825
Genre :
File Size : 49. 75 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...

Space Technologies For The Benefit Of Human Society And Earth

Author : Phillip Olla
ISBN : 9781402095733
Genre : Technology & Engineering
File Size : 34. 35 MB
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Overview of Space Technology It has been over 50 years since the rst satellite was sent into orbit, and the impact of space technology can be felt in many aspects in our day to day life. In addition to the convenience of knowing exactly where we are on the planet via GPS satellites; or deciding what to pack for a trip based on forecasts from weather satellites; watching CNNinaremotevillageviabroadcasting satellites;therearenowsomecrucialen- ronmental uses of Space technologies in the areas of natural resources management and environmental monitoring. Remotely sensed data reveals an unparallel view of the Earth for systems that require synoptic or periodic observations such as inv- tory control, surveying, agriculture, business, mineralogy, hydrography, geology, land mass cover, land utilization and environment monitoring. The advancement of remote sensing has made remote sensed data more affordable and available to merge with a variety of data sources to create mash-ups. The amalgamation of these data sources into disciplines such as agriculture, urban planning, web applications, cartography, geodetic reference systems, and global navigation satellite systems, are an important advancement of space applications and space science. Space Technology and Millennium Development Goals (MDGs) The MDGs are a set of time-bound, measurable goals and targets that are global as well as country-speci c for combating poverty, hunger, diseases, illiteracy, envir- mental degradation and discrimination against women.

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