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Design And Analysis Of On Orbit Servicing Architectures For The Global Positioning System Constellation
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Book Synopsis Design and Analysis of On-Orbit Servicing Architectures for the Global Positioning System Constellation by : Gregg Leisman
Download or read book Design and Analysis of On-Orbit Servicing Architectures for the Global Positioning System Constellation written by Gregg Leisman and published by . This book was released on 1999-03-01 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellites are the only major Air Force systems with no maintenance, routine repair, or upgrade capability. The result is expensive satellites and a heavy reliance on access to space. At the same time, satellite design is maturing and reducing the cost to produce satellites with longer design lives. This works against the ability to keep the technology on satellites current without frequent replacement of those satellites. The Global Positioning System Joint Program Office realizes that it must change its mode of operations to quickly meet new requirements while minimizing cost. The possibility of using robotic servicing architectures to solve these problems is considered in this thesis. The authors accomplished this through a systems engineering and decision analysis approach in which a number of different alternatives for on-orbit satellite repair and upgrade were analyzed. This approach involved defining the problem framework and desired user benefits, then developing different system architectures and determining their performance with regard to the specified benefits. Finally, the authors used decision analysis to evaluate the alternative architectures in the context of the user's goals. The results indicate favorable benefit-to-cost relationships for on-orbit servicing architectures as compared to the current mode of operation.
Book Synopsis The Interoperable Global Navigation Satellite Systems Space Service Volume by : United Nations Publications
Download or read book The Interoperable Global Navigation Satellite Systems Space Service Volume written by United Nations Publications and published by . This book was released on 2019-09-19 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The availability and performance of global navigation satellite systems (GNSS) signals at high altitude is documented as the GNSS Space Service Volume (SSV). While different definitions of the SSV exist and may continue to exist for the different service providers, within the context of this booklet it is defined as the region of space between 3,000 km and 36,000 km above the Earth's surface, which is the geostationary altitude. For space users located at low altitudes (below 3,000 km), the GNSS signal reception is similar to that for terrestrial users and can be conservatively derived from the results presented for the lower SSV in this booklet.
Book Synopsis Satellite Communications Network Design and Analysis by : Kenneth Y. Jo
Download or read book Satellite Communications Network Design and Analysis written by Kenneth Y. Jo and published by Artech House. This book was released on 2011 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative book provides a thorough understanding of the fundamental concepts of satellite communications (SATCOM) network design and performance assessments. You find discussions on a wide class of SATCOM networks using satellites as core components, as well as coverage key applications in the field. This in-depth resource presents a broad range of critical topics, from geosynchronous Earth orbiting (GEO) satellites and direct broadcast satellite systems, to low Earth orbiting (LEO) satellites, radio standards and protocols.This invaluable reference explains the many specific uses of satellite networks, including small-terminal wireless and mobile communications systems. Moreover, this book presents advanced topics such as satellite RF link analyses, optimum transponder loading, on-board processing, antenna characteristics, protected systems, information assurance, and spread spectrums. You are introduced to current and future SATCOM systems and find details on their performance supportabilities. This cutting-edge book also presents trends in multimedia satellite applications and IP services over satellites.
Author :National Academy of Engineering Publisher :National Academies Press ISBN 13 :0309222753 Total Pages :284 pages Book Rating :4.3/5 (92 download)
Book Synopsis Global Navigation Satellite Systems by : National Academy of Engineering
Download or read book Global Navigation Satellite Systems written by National Academy of Engineering and published by National Academies Press. This book was released on 2012-04-27 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Positioning System (GPS) has revolutionized the measurement of position, velocity, and time. It has rapidly evolved into a worldwide utility with more than a billion receiver sets currently in use that provide enormous benefits to humanity: improved safety of life, increased productivity, and wide-spread convenience. Global Navigation Satellite Systems summarizes the joint workshop on Global Navigation Satellite Systems held jointly by the U.S. National Academy of Engineering and the Chinese Academy of Engineering on May 24-25, 2011 at Hongqiao Guest Hotel in Shanghai, China. "We have one world, and only one set of global resources. It is important to work together on satellite navigation. Competing and cooperation is like Yin and Yang. They need to be balanced," stated Dr. Charles M. Vest, President of the National Academy of Engineering, in the workshop's opening remarks. Global Navigation Satellite Systems covers the objectives of the workshop, which explore issues of enhanced interoperability and interchangeability for all civil users aimed to consider collaborative efforts for countering the global threat of inadvertent or illegal interference to GNSS signals, promotes new applications for GNSS, emphasizing productivity, safety, and environmental protection. The workshop featured presentations chosen based on the following criteria: they must have relevant engineering/technical content or usefulness; be of mutual interest; offer the opportunity for enhancing GNSS availability, accuracy, integrity, and/or continuity; and offer the possibility of recommendations for further actions and discussions. Global Navigation Satellite Systems is an essential report for engineers, workshop attendees, policy makers, educators, and relevant government agencies.
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Society of Photo-optical Instrumentation Engineers Publisher :SPIE-International Society for Optical Engineering ISBN 13 : Total Pages :162 pages Book Rating :4.3/5 (91 download)
Book Synopsis Small Payloads in Space by : Society of Photo-optical Instrumentation Engineers
Download or read book Small Payloads in Space written by Society of Photo-optical Instrumentation Engineers and published by SPIE-International Society for Optical Engineering. This book was released on 2000 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technologies for Refueling Spacecraft On-Orbit by :
Download or read book Technologies for Refueling Spacecraft On-Orbit written by and published by . This book was released on 2000 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Global Positioning System by : Scott Pace
Download or read book The Global Positioning System written by Scott Pace and published by RAND Corporation. This book was released on 1995 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive assessment of the challenges and opportunities created by worldwide access to this revolutionary technology.
Author :Management Association, Information Resources Publisher :IGI Global ISBN 13 :1609604733 Total Pages :2069 pages Book Rating :4.6/5 (96 download)
Book Synopsis Green Technologies: Concepts, Methodologies, Tools and Applications by : Management Association, Information Resources
Download or read book Green Technologies: Concepts, Methodologies, Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2011-03-31 with total page 2069 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Technologies: Concepts, Methodologies, Tools and Applications assembles the most up-to-date collection of research results and recent discoveries in environmental and green technology. This comprehensive anthology covers a wide range of topics, i
Download or read book Signal written by and published by . This book was released on 2000 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Software-Defined GPS and Galileo Receiver by : Kai Borre
Download or read book A Software-Defined GPS and Galileo Receiver written by Kai Borre and published by Springer Science & Business Media. This book was released on 2007-08-03 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explore the use of new technologies in the area of satellite navigation receivers. In order to construct a reconfigurable receiver with a wide range of applications, the authors discuss receiver architecture based on software-defined radio techniques. The presentation unfolds in a user-friendly style and goes from the basics to cutting-edge research. The book is aimed at applied mathematicians, electrical engineers, geodesists, and graduate students. It may be used as a textbook in various GPS technology and signal processing courses, or as a self-study reference for anyone working with satellite navigation receivers.
Book Synopsis Department of Defense Authorization for Appropriations for Fiscal Year 2010, Part 7, S. Hrg. 111-100, Pt. 7, May 20 and June 3, 2009, 111-1 Hearings, * by :
Download or read book Department of Defense Authorization for Appropriations for Fiscal Year 2010, Part 7, S. Hrg. 111-100, Pt. 7, May 20 and June 3, 2009, 111-1 Hearings, * written by and published by . This book was released on 2010 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Department of Defense Authorization for Appropriations for Fiscal Year 2010 by : United States. Congress. Senate. Committee on Armed Services
Download or read book Department of Defense Authorization for Appropriations for Fiscal Year 2010 written by United States. Congress. Senate. Committee on Armed Services and published by . This book was released on 2009 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Bernhard Hofmann-Wellenhof Publisher :Springer Science & Business Media ISBN 13 :3211730176 Total Pages :537 pages Book Rating :4.2/5 (117 download)
Book Synopsis GNSS – Global Navigation Satellite Systems by : Bernhard Hofmann-Wellenhof
Download or read book GNSS – Global Navigation Satellite Systems written by Bernhard Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2007-11-20 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book extends the scientific bestseller "GPS - Theory and Practice" to cover Global Navigation Satellite Systems (GNSS) and includes the Russian GLONASS, the European system Galileo, and additional systems. The book refers to GNSS in the generic sense to describe the various existing reference systems for coordinates and time, the satellite orbits, the satellite signals, observables, mathematical models for positioning, data processing, and data transformation. This book is a university-level introductory textbook and is intended to serve as a reference for students as well as for professionals and scientists in the fields of geodesy, surveying engineering, navigation, and related disciplines.
Book Synopsis Flight Dynamics Analysis Branch by :
Download or read book Flight Dynamics Analysis Branch written by and published by . This book was released on 2000 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Small Satellites in NASA and NOAA Earth Observation Programs by : National Research Council
Download or read book The Role of Small Satellites in NASA and NOAA Earth Observation Programs written by National Research Council and published by National Academies Press. This book was released on 2000-05-12 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote observations of Earth from space serve an extraordinarily broad range of purposes, resulting in extraordinary demands on those at the National Aeronautics and Space Administration (NASA), the National Oceanic and Atmospheric Administration (NOAA), and elsewhere who must decide how to execute them. In research, Earth observations promise large volumes of data to a variety of disciplines with differing needs for measurement type, simultaneity, continuity, and long-term instrument stability. Operational needs, such as weather forecasting, add a distinct set of requirements for continual and highly reliable monitoring of global conditions. The Role of Small Satellites in NASA and NOAA Earth Observation Programs confronts these diverse requirements and assesses how they might be met by small satellites. In the past, the preferred architecture for most NASA and NOAA missions was a single large spacecraft platform containing a sophisticated suite of instruments. But the recognition in other areas of space research that cost-effectiveness, flexibility, and robustness may be enhanced by using small spacecraft has raised questions about this philosophy of Earth observation. For example, NASA has already abandoned its original plan for a follow-on series of major platforms in its Earth Observing System. This study finds that small spacecraft can play an important role in Earth observation programs, providing to this field some of the expected benefits that are normally associated with such programs, such as rapid development and lower individual mission cost. It also identifies some of the programmatic and technical challenges associated with a mission composed of small spacecraft, as well as reasons why more traditional, larger platforms might still be preferred. The reasonable conclusion is that a systems-level examination is required to determine the optimum architecture for a given scientific and/or operational objective. The implied new challenge is for NASA and NOAA to find intra- and interagency planning mechanisms that can achieve the most appropriate and cost-effective balance among their various requirements.
