Download or read book Theory of Geostationary Satellites written by Chong-Hung Zee and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geostationary or equatorial synchronous satellites are a daily reminder of our space efforts during the past two decades. The nightly television satellite weather picture, the intercontinental telecommunications of television transmissions and telephone conversations, and the establishrnent of educational programs in remote regions on Earth are constant reminders of the presence of these satellites. As used here, the term 'geo stationary' must be taken loosely because, in the long run, the satellites will not remain 'stationary' with respect to an Earth-fixed reference frame. This results from the fact that these satellites, as is true for all satellites, are incessantly subject to perturbations other than the central-body attraction of the Earth. Among the more predominant pertur bations are: the ellipticity of the Earth's equator, the Sun and Moon, and solar radiation pressure. Higher harmonics of the Earth's potential and tidal effects also influence satellite motion, but they are of second order when compared to the predominant perturbations. This volume deals with the theory of geostationary satellites. It consists of seven chapters. Chapter 1 provides a general discussion including a brief history of geostationary satellites and their practical applications. Chapter 2 describes the Earth's gravitational potential field and the methodology of solving the geostationary satellite problem. Chapter 3 treats the effect of Earth's equatorial ellipticity (triaxiality) on a geostationary satellite. Chapter 4 deals with the effects of the Sun and Moon on the satellite's motion while Chapter 5 presents the combined influences of the Sun, Moon and solar radiation pressure. Chapter 6 describes various station-keeping techniques which may be used to make geostationary satellites practically stationary. Finally, Chapter 7 describes the verification of the theory developed in Chapters 3, 4 and 5 by utilizing the Early Bird synchronous satellite observed data as well as its numerically integrated results.
Download or read book Theory of Geostationary Satellites written by Chong-Hung Zee and published by Springer Science & Business Media. This book was released on 1989-04-30 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geostationary or equatorial synchronous satellites are a daily reminder of our space efforts during the past two decades. The nightly television satellite weather picture, the intercontinental telecommunications of television transmissions and telephone conversations, and the establishrnent of educational programs in remote regions on Earth are constant reminders of the presence of these satellites. As used here, the term 'geo stationary' must be taken loosely because, in the long run, the satellites will not remain 'stationary' with respect to an Earth-fixed reference frame. This results from the fact that these satellites, as is true for all satellites, are incessantly subject to perturbations other than the central-body attraction of the Earth. Among the more predominant pertur bations are: the ellipticity of the Earth's equator, the Sun and Moon, and solar radiation pressure. Higher harmonics of the Earth's potential and tidal effects also influence satellite motion, but they are of second order when compared to the predominant perturbations. This volume deals with the theory of geostationary satellites. It consists of seven chapters. Chapter 1 provides a general discussion including a brief history of geostationary satellites and their practical applications. Chapter 2 describes the Earth's gravitational potential field and the methodology of solving the geostationary satellite problem. Chapter 3 treats the effect of Earth's equatorial ellipticity (triaxiality) on a geostationary satellite. Chapter 4 deals with the effects of the Sun and Moo~ on the satellite's motion while Chapter 5 presents the combined influences of the Sun, Moon and solar radiation pressure.
Download or read book Satellite Communications Payload and System written by Teresa M. Braun and published by John Wiley & Sons. This book was released on 2012-08-06 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Theory of Satellite Geodesy written by William M. Kaula and published by Courier Corporation. This book was released on 2013-01-08 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Text discusses earth's gravitational field; matrices and orbital geometry; satellite orbit dynamics; geometry of satellite observations; statistical implications; and data analysis.
Download or read book Satellite Orbits written by Oliver Montenbruck and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: This modern presentation guides readers through the theory and practice of satellite orbit prediction and determination. Starting from the basic principles of orbital mechanics, it covers elaborate force models as well as precise methods of satellite tracking. The accompanying CD-ROM includes source code in C++ and relevant data files for applications. The result is a powerful and unique spaceflight dynamics library, which allows users to easily create software extensions. An extensive collection of frequently updated Internet resources is provided through WWW hyperlinks.
Download or read book Handbook of Geostationary Orbits written by E.M. Soop and published by Springer Science & Business Media. This book was released on 1994-10-31 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook 0/ Geostationary Orbits is in principle an extension of the Introduction to Geostationary Orbits that was printed as a special publica tion by the European Space Agency (ESA) in 1983. The immediate purpose was to provide the theoretical background and some practical advice for the orbit control of geostationary spacecraft by means of the software package "PEPSOC". PEPSOC, short for "Portable ESOC Package for Synchronous Orbit Con trol" , was produced by the European Space Operations Centre (ESOC) to support spacecraft operations in the routine phase. The resulting publication was a handbook for engineers and spacecraft operators, rather than a clas sical textbook in celestial mechanics. During the past eleven years, the software system PEPSOC has found a wide application both within and outside the ESA member states. At the same time, the original Introduction found numerous readers also outside the group of PEPSOC operators. The continuing development and the in creasing use of the geostationary orbit has now created the need for a new, more detailed publication to include new aspects that have emerged. The present Handbook contains several additional subjects and more math ematics to describe the methods applied in PEPSOC. The geophysical and astronomical parameters have been updated to reflect the latest recom mended values. This results in small deviations of the numerical data compared to the Introduction.
Download or read book Communication Satellites in the Geostationary Orbit written by Donald M. Jansky and published by Artech House Publishers. This book was released on 1987 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory Of Satellite Fragmentation In Orbit written by Arjun Tan and published by World Scientific. This book was released on 2019-12-24 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: For over half a century, an increasing number of satellites have fragmented in orbit, creating a large amount of hazardous orbital debris which threaten the safety of useful functioning satellites and space missions. This book discusses the theory behind these fragmentations followed by studies of actual cases.The book begins with a survey of satellite fragmentations in orbit and the consequent formation of orbital debris in chronological order. Next, the fundamental physical processes underlying satellite fragmentations are outlined and the methods of analyzing satellite fragmentations presented. The rest of the book presents analyses of the major satellite fragmentation events including accidental and intentional breakups, those due to explosions and collisions, as well as those belonging to the unknown category.
Download or read book The Geostationary Applications Satellite written by Peter Berlin and published by Cambridge University Press. This book was released on 1988 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: Very Good,No Highlights or Markup,all pages are intact.
Download or read book A Modified Hansen s Theory as Applied to the Motion of Artificial Satellites written by Peter Musen and published by . This book was released on 1960 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents a theory of oblateness perturbations of the orbits of artificial satellites based on Hansen's theory, with modification for adaptation to fast machine computation. The theory permits the easy inclusion of any gravitational terms and is suitable for the deduction of geo-physical and geodetic data from orbit observations on artificial satellites. The computations can be carried out to any desired order compatible with the accuracy of the geodetic parameters.
Download or read book An Introduction to Mission Design for Geostationary Satellites written by J.J. Pocha and published by Springer. This book was released on 1987 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to the mission design of communication satellites. There are many excellent books on orbit mechanics and astrodynamics, but until now there has been no single work that explains the ins and outs of mission design, and explains why things are done the way they are done as well as how they are done. The book will be of interest not only to practising mission analysts, but also to spacecraft systems engineers, spacecraft project managers and to those who wish to employ the unique attributes of geosynchronous spacecraft for useful purposes. At last, an explanation of the ins and outs of mission design is offered in a clear and concise matter. The self-contained reference book utilizes analytical details and illustrations to explain the broad aspects of design and mission operations. This unique approach makes it easier for you to assimilate the necessary information to analyze, plan, and carry out a geosynchronous mission from launch, through orbit transfer and station acquisition, to station-keeping and on-orbit operations. This book will be a useful reference for practising mission analysts, spacecraft systems engineers, project managers and others with a practical interest in the uniqiue attributes of geosynchronous spacecraft.
Download or read book Geosynchronous SAR System and Signal Processing written by Teng Long and published by Springer. This book was released on 2018-04-20 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book chiefly addresses the analysis and design of geosynchronous synthetic aperture radar (GEO SAR) systems, focusing on the algorithms, analysis, methods used to compensate for ionospheric influences, and validation experiments for Global Navigation Satellite Systems (GNSS). Further, it investigates special problems in the GEO SAR context, such as curved trajectories, the Earth’s rotation, the ‘non-stop-and-go’ model, high-order Doppler parameters, temporal-variant ionospheric errors etc. These studies can also be extended to SAR with very high resolution and long integration time. Given the breadth and depth of its coverage, scientists and engineers in SAR and advanced graduate students in related areas will greatly benefit from this book.
Download or read book How the World Was One written by Arthur C. Clarke and published by Hachette UK. This book was released on 2011-09-29 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arthur C. Clarke has been one of the most influential commentators on - and prophets of - the communications technology which has created the global village. Now, drawing partly on his own sometimes very personal writings, he provides an absorbing history and survey of modern communications. The story begins with the titanic struggles to lay transatlantic telegraph cables in the nineteenth century. Fighting against widespread scepticism, lack of funds, technical disasters and setbacks - and against the Atlantic itself, above and below the surface - the pioneers achieved the seemingly impossible and by 1858 Britain and America were linked by Telegraph. Nearly a century later, as the first transatlantic telephone cable was being laid, the technology that would rival and perhaps even supersede it was undergoing its painful birth as scientists developed the communications satellite precisely as Clarke first described in his famous 1945 article Wireless World, 'Extra-terrestrial Relays', reprinted in this book. The rivalry between cable and satellite continued through the decades. Communication satellites (Comsats) performed even beyond the most optimistic expectations, but cable fought back with the development of the transistor. Then, in one of the most dramatic and unexpected breakthroughs in any technology, the potential of cable systems was transformed. The development of fibre optics technology meant that once more the seabeds of the world began to be draped with the newest and most sophisticated artefacts of human engineering. It is an enthralling story, filled with extraordinary events and people, and Arthur C. Clarke brings all his storytelling flair and scientific expertise to bear on it. The result is a superb combination of history, comment and challenging speculation.
Download or read book A Synchronous Satellite Time Delay Computer written by Wallace F. Hamilton and published by . This book was released on 1973 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A special purpose slide rule designed to compute the free space propagation delay between a synchronous satellite and points on the earth's surface is discussed. The slide rule was developed to provide users of time information relayed by geostationary satellites a means of computing the propagation delays without dealing directly with the satellite's orbital elements. The delays computed with the slide rule are compared with the values obtained from orbital elements using a high precision digital computer. The limitations and accuracy of the slide rule are discussed. A sample slide rule which may be cut out and used is included in the report.
Download or read book Global Mobile Satellite Communications Theory written by Stojče Dimov Ilčev and published by Springer. This book was released on 2016-09-23 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses current theory regarding global mobile satellite communications (GMSC) for maritime, land (road and rail), and aeronautical applications. It covers how these can enable connections between moving objects such as ships, road and rail vehicles and aircrafts on one hand, and on the other ground telecommunications subscribers through the medium of communications satellites, ground earth stations, Terrestrial Telecommunication Networks (TTN), Internet Service Providers (ISP) and other wireless and landline telecommunications providers. This new edition covers new developments and initiatives that have resulted in land and aeronautical applications and the introduction of new satellite constellations in non-geostationary orbits and projects of new hybrid satellite constellations. The book presents current GMSC trends, mobile system concepts and network architecture using a simple mode of style with understandable technical information, characteristics, graphics, illustrations and mathematics equations. The first edition of Global Mobile Satellite Communications (Springer, 2005) was split into two books for the second edition—one on applications and one on theory. This book presents global mobile satellite communications theory.
Download or read book Spacecraft Dynamics and Control written by Marcel J. Sidi and published by Cambridge University Press. This book was released on 2000-07-03 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellites are used increasingly in telecommunications, scientific research, surveillance, and meteorology, and these satellites rely heavily on the effectiveness of complex onboard control systems. This 1997 book explains the basic theory of spacecraft dynamics and control and the practical aspects of controlling a satellite. The emphasis throughout is on analyzing and solving real-world engineering problems. For example, the author discusses orbital and rotational dynamics of spacecraft under a variety of environmental conditions, along with the realistic constraints imposed by available hardware. Among the topics covered are orbital dynamics, attitude dynamics, gravity gradient stabilization, single and dual spin stabilization, attitude maneuvers, attitude stabilization, and structural dynamics and liquid sloshing.
Download or read book The Last Pictures written by Trevor Paglen and published by Univ of California Press. This book was released on 2012-09-19 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human civilizations' longest lasting artifacts are not the great Pyramids of Giza, nor the cave paintings at Lascaux, but the communications satellites that circle our planet. In a stationary orbit above the equator, the satellites that broadcast our TV signals, route our phone calls, and process our credit card transactions experience no atmospheric drag. Their inert hulls will continue to drift around Earth until the Sun expands into a red giant and engulfs them about 4.5 billion years from now. The Last Pictures, co-published by Creative Time Books, is rooted in the premise that these communications satellites will ultimately become the cultural and material ruins of the late 20th and early 21st centuries, far outlasting anything else humans have created. Inspired in part by ancient cave paintings, nuclear waste warning signs, and Carl Sagan's Golden Records of the 1970s, artist/geographer and MacArthur "Genius" Fellow Trevor Paglen has developed a collection of one hundred images that will be etched onto an ultra-archival, golden silicon disc. The disc, commissioned by Creative Time, will then be sent into orbit onboard the Echostar XVI satellite in September 2012, as both a time capsule and a message to the future. The selection of 100 images, which are the centerpiece of the book, was influenced by four years of interviews with leading scientists, philosophers, anthropologists, and artists about the contradictions that characterize contemporary civilizations. Consequently, The Last Pictures engages some of the most profound questions of the human experience, provoking discourse about communication, deep time, and the economic, environmental, and social uncertainties that define our historical moment. Copub: Creative Time Books
