Download or read book Compressed Internet Protocol IP Data Via Geosynchronous Earth Orbit GEO Satellite Circuits written by and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: To enable Internet Protocol applications in the submarine environment, Critical Technologies Inc. (CTI) has defined requirements for an integrated system of enhanced Data Link, Network and Transport protocols (in OSI Layers 2-4) and an innovative Application Traffic Controller (ATC, in OSI Layers 5-7). It integrates caching, compression, prioritization and queuing to optimize link utilization. The Compression Controller segment will provide users with compression benefits without requiring them to manually invoke compression utilities. It will automatically and transparently, based upon policy rules, for each data object: determine whether the data requires compression, and if so, which algorithms and parameters are most appropriate for that data; and then dispatch the object to the most appropriate available external compression utility. Navy system administrators will define the rules, based on Application Layer data object type, size, format, content, intended use, importance, source/destination, etc., per approved doctrine. In addition to automating compression, it will provide better control over the tradeoffs among delivered data quality, timeliness and wireless resource consumption. In the Phase I Option, CTI developed a Compression Controller pre-prototype and successfully tested it over UHF DAMA MILSATCOM.
Download or read book Compressed Internet Protocol Data Via Geosynchronous Earth Orbit Satellite Circuits written by and published by . This book was released on 2001 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: To enable Internet Protocol (IP) applications in the submarine environment, Critical Technologies Inc. (CTI) has defined requirements for an integrated system, comprising enhanced Data Link, Network and Transport protocols (OSI Layers 2-4), and an innovative Application Traffic Controller (ATC, operating in OSI Layers 5-7). The system will optimize efficiency and effectiveness of fleet communications, despite submarine SATCOM's high Bit Error Rate, low bandwidth, long latency, extreme channel variability and severely intermittent connectivity. The ATC integrates caching, compression, prioritization and queuing, under control of system-administrator specified rules, to optimize link utilization. The system is also designed to operate under Low Probability of Detection I Intercept and EMCON (with planned and unplanned blackouts, in various constrained 2- and 1-way communications postures), by integrating enhanced protocols that provide reliable transport of IP traffic to submarines without acknowledgement. The system will benefit various assets of the current and future US fleet, as well as other military and commercial organizations. These assets could include fast attack and ballistic missile submarines, surface ships, airborne platforms, unmanned vehicles, littoral elements, and various land, sea, air, and space networks.
Download or read book Low Earth Orbit Satellite Internet Protocol Communications Concept and Design written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a design concept for a low-Earth-orbit end-to-end Internet-Protocol- (IP-) based mission. The goal is to maintain an up-to-date communications infrastructure that makes communications seamless with the protocols used in terrestrial computing. It is based on the premise that the use of IPs will permit greater interoperability while also reducing costs and providing users the ability to retrieve data directly from the satellite. However, implementing an IP-based solution also has a number of challenges, since wireless communications have different characteristics than wired communications. This report outlines the design of a low-Earth-orbit end-to-end IP-based mission; the ideas and concepts of Space Internet architectures and networks are beyond the scope of this document. The findings of this report show that an IP-based mission is plausible and would provide benefits to the user community, but the outstanding issues must be resolved before a design can be implemented.Slywezak, Richard A.Glenn Research CenterINTERNETS; LOW EARTH ORBITS; PROTOCOL (COMPUTERS); SATELLITE COMMUNICATION; REMOTE SENSING; COMMUNICATION SATELLITES; INTEROPERABILITY
Download or read book Transport Network and Data Link Layer Protocol Designs to Improve Geo stationary Earth Orbit Satellite Data Set Transmission Performance written by Paul Douglas Wiedemeier and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Geo-stationary earth orbit (CEO) satellites are wireless transmission media that provide near-earth Internet and Intranet data communication, but are limited to low Megabits per second transmission rates and small messages. They can provide communication infrastructure to rural earth locales, are not affected by terrorist events and natural disasters that render terrestrial channels unusable, and can replace terrestrial communication infrastructure. In this thesis, we present new designs for a transport layer data transmission protocol, a network layer routing strategy, and a data-link layer medium access control strategy. Through simulation, we show that our designs permit earth stations to transmit large data sets at high transmission rates over GEO satellites in less time than the Transmission Control Protocol variant Reno and frequency division multiplexing. Our designs can be used by organizations that wish to transmit large data sets quickly over CEO satellites that exhibit large bandwidth delay products and large bit error rates.
Download or read book Satellite Communications written by Takashi Iida and published by IOS Press. This book was released on 2000 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Satellite Communication written by Bruce R. Elbert and published by Artech House. This book was released on 2008 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether you are a technical or management professional, you can turn to this highly understandable and comprehensive overview of satellite technology, applications, and management. Thoroughly updated and expanded, this third edition boasts a wealth of new material, including added coverage of systems engineering as applied to satellite communications, clear explanations of all aspects of building and using a satellite systems, and discussions on digital communications and processing in modern satellite networks. The new edition also examines critical success factors and how to avoid the pitfalls in selecting satellite and ground resources. The book covers all the fundamentals of satellites, ground control systems, and earth stations, considering the design and operation of each major segment. You gain a practical understanding of the basic construction and usage of commercial satellite networks-how parts of a satellite system function, how various components interact, which role each component plays, and which factors are the most critical to success. Moreover, the book explores the economic, legal, and management issues involved in running the business of satellite communications.
Download or read book Satellite Communications Systems Engineering written by Louis J. Ippolito, Jr. and published by John Wiley & Sons. This book was released on 2017-02-28 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Satellite Communications Systems Engineering (Wiley 2008) was written for those concerned with the design and performance of satellite communications systems employed in fixed point to point, broadcasting, mobile, radio navigation, data relay, computer communications, and related satellite based applications. This welcome Second Edition continues the basic premise and enhances the publication with the latest updated information and new technologies developed since the publication of the first edition. The book is based on graduate level satellite communications course material and has served as the primary text for electrical engineering Masters and Doctoral level courses in satellite communications and related areas. Introductory to advanced engineering level students in electrical, communications and wireless network courses, and electrical engineers, communications engineers, systems engineers, and wireless network engineers looking for a refresher will find this essential text invaluable.
Download or read book The Evolution of Untethered Communications written by National Research Council and published by National Academies Press. This book was released on 1998-01-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to a request from the Defense Advanced Research Projects Agency, the committee studied a range of issues to help identify what strategies the Department of Defense might follow to meet its need for flexible, rapidly deployable communications systems. Taking into account the military's particular requirements for security, interoperability, and other capabilities as well as the extent to which commercial technology development can be expected to support these and related needs, the book recommends systems and component research as well as organizational changes to help the DOD field state-of-the-art, cost-effective untethered communications systems. In addition to advising DARPA on where its investment in information technology for mobile wireless communications systems can have the greatest impact, the book explores the evolution of wireless technology, the often fruitful synergy between commercial and military research and development efforts, and the technical challenges still to be overcome in making the dream of "anytime, anywhere" communications a reality.
Download or read book Handbook of Satellite Applications written by Joseph N. Pelton and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The GOES R Series written by Steven J. Goodman and published by Elsevier. This book was released on 2019-10-05 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The GOES-R Series: A New Generation of Geostationary Environmental Satellites introduces the reader to the most significant advance in weather technology in a generation. The world’s new constellation of geostationary operational environmental satellites (GOES) are in the midst of a drastic revolution with their greatly improved capabilities that provide orders of magnitude improvements in spatial, temporal and spectral resolution. Never before have routine observations been possible over such a wide area. Imagine satellite images over the full disk every 10 or 15 minutes and monitoring of severe storms, cyclones, fires and volcanic eruptions on the scale of minutes. Introduces the GOES-R Series, with chapters on each of its new products Provides an overview of how to read new satellite images Includes full-color images and online animations that demonstrate the power of this new technology
Download or read book Satellite Technology written by Anil K. Maini and published by John Wiley & Sons. This book was released on 2014-03-31 with total page 987 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully updated edition of the comprehensive, single-source reference on satellite technology and its applications Covering both the technology and its applications, Satellite Technology is a concise reference on satellites for commercial, scientific and military purposes. The book explains satellite technology fully, beginning by offering an introduction to the fundamentals, before covering orbits and trajectories, launch and in-orbit operations, hardware, communication techniques, multiple access techniques, and link design fundamentals. This new edition also includes comprehensive chapters on Satellite Networks and Satellite Technology – Emerging Trends. Providing a complete survey of applications, from remote sensing and military uses, to navigational and scientific applications, the authors also present an inclusive compendium on satellites and satellite launch vehicles. Filled with diagrams and illustrations, this book serves as an ideal introduction for those new to the topic, as well as a reference point for professionals. Fully updated edition of the comprehensive, single-source reference on satellite technology and its applications - remote sensing, weather, navigation, scientific, and military - including new chapters on Satellite Networks and Satellite Technology – Emerging Trends Covers the full range of satellite applications in remote sensing, meteorology, the military, navigation and science, and communications, including satellite-to-under sea communication, satellite cell-phones, and global Xpress system of INMARSAT The cross-disciplinary coverage makes the book an essential reference book for professionals, R&D scientists and students at post graduate level Companion website provides a complete compendium on satellites and satellite launch vehicles An ideal introduction for Professionals and R&D scientists in the field. Engineering Students. Cross disciplinary information for engineers and technical managers.
Download or read book Satellite Communication Engineering written by Michael Olorunfunmi Kolawole and published by CRC Press. This book was released on 2002-05-24 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1997 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Orbital Debris written by National Research Council and published by National Academies Press. This book was released on 1995-07-07 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Download or read book The Satellite Communication Applications Handbook written by Bruce R. Elbert and published by Artech House. This book was released on 2004 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the publication of the best-selling first edition of The Satellite Communication Applications Handbook, the satellite communications industry has experienced explosive growth. Satellite radio, direct-to-home satellite television, satellite telephones, and satellite guidance for automobiles are now common and popular consumer products. Similarly, business, government, and defense organizations now rely on satellite communications for day-to-day operations. This second edition covers all the latest advances in satellite technology and applications including direct-to-home broadcasting, digital audio and video, and VSAT networks. Engineers get the latest technical insights into operations, architectures, and systems components.
Download or read book How to Accelerate Your Internet written by Rob Flickenger and published by Lulu.com. This book was released on 2006-10-01 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Smaller Satellites Bigger Business written by Michael J Rycroft and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: Y. Fujimori, Symposium Programme Committee Chair, and Faculty Member, International Space University e-mail: [email protected] M.Rycroft, Faculty Member, International Space University e-mail: [email protected] N. Crosby, International Space University e-mail: [email protected] For the sixth annual ISU Symposium the theme was "Smaller Satellites: Bigger Business? Concepts, Applications and Markets for Micro/Nanosatellites in a New Information World". Thus, the Symposium addressed the crucial question: are small satellites the saviour of space programmes around the world It did this from the unique perspective of the International Space today? University - the interdisciplinary, international and intercultural perspective. This Symposium brought together a variety of people working on small satellites - engineers, scientists, planners, providers, operators, policy makers and business executives, together with representatives from regulatory bodies, from national and international organizations, and from the finance sector, and also entrepreneurs. Discussion and debate were encouraged, based on the papers presented and those published here.
