Advanced Communications Satellite Systems
نویسندگان
چکیده
منابع مشابه
Inter-Satellite Communications for Small Satellite Systems
Small satellite technology has opened a new era in aerospace engineering by decreasing space mission costs, without greatly reducing the performance. The concept of formation flying using small satellites is becoming popular because of their potential to perform coordinated measurements of remote sensing space missions. The current state of art in satellite communications is a one hop link betw...
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This report reviews the status of satellite communications systems and technology research and development around the world, with particular focus on comparisons between the United States and other leading industrialized countries. Topics covered include a review of market forces and future drivers at work in the satellite communications industry today, key technology trends around the world, r...
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The US airspace is reaching its capacity with the current Air Traffic Control system and a number of flights that is constantly rising, and estimated to be over 54 million per year by 2002. The FAA has undertaken several projects to modernize the National Airspace System (NAS) to ensure the safety of the increasing number of flights. Of special importance is the modernization of the Air-Ground ...
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A frequency synchronization method is proposed and analyzed for global satellite communications systems employing low earth orbit satellites or medium earth orbit satellites. In these systems, the Doppler shift varies randomly and can be more than ten times larger than the symbol rate. The proposed method uses the satellite as the reference point and corrects frequency errors accordingly. It is...
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This paper describes a program of experiments conducted by the CSHCN using ACTS. This program of three experiments commenced in 1992 and utilized the ACTS T1-VSAT terminal. The experiments were motivated by the commercial driver of low-cost receive-only satellite terminals that can operate in a hybrid network environment. The first experiment tested highly adaptive methods of satellite bandwidt...
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ژورنال
عنوان ژورنال: IEEE Journal on Selected Areas in Communications
سال: 1983
ISSN: 0733-8716
DOI: 10.1109/jsac.1983.1145965