Advanced Payload Concepts And System Architecture For Emerging Services In Indian National Satellite System
- Paper number
IAC-07-B2.6.04
- Author
Mr. E.P. Balasubramanian, Indian Space Research Organisation, India
- Coauthor
Mr. N.Prahlad Rao, Indian Space Research Organisation (ISRO), India
- Coauthor
Mr. Sumitesh Sarkar, Indian Space Research Organisation (ISRO), India
- Coauthor
Mr. Dinesh Singh, Indian Space Research Organisation (ISRO), India
- Year
2007
- Abstract
Over the past two decades, Indian Space Research Organisation (ISRO) has developed and operated satellites for services in Indian region. Payloads carried traditional bent-pipe transponders, which were optimized mainly for FSS and BSS applications. At present a number of payloads are being configured to enhance the high power DTH services in the country. There is a paradigm shift now in Indian market in terms of demand, to a large extent from the population in cities and towns, for new services like Broadband Internet, Interactive Multimedia etc. But with our commitment towards taking the benefits of technological advancement to the all round growth of our population as a whole, 70 percent of which dwell in rural areas challenges are many in finding a solution in terms of high capacity and cost effective satellite system to usher in new services at prices lower than competing technologies as well as catering to the needs of key development areas like Tele-medicine, tele-education, Rural Information networks. This paper presents concepts for the next generation satellite system, which will employ advanced technology and system architecture. Satellite antenna technology for high gain multi beam coverage supported by spacecraft bus technology of providing tighter station keeping and attitude errors is key to enhance the communication capacity manifold and to build access satellite for interactive services. Dynamic resource allocation methodologies implemented with a unique combination of on-board management techniques and system network features will enable a variety of broadband service applications. Customised solutions will use meteorological data from service area for implementing fade mitigation techniques on-board to ensure maintain link availability in high rainfall rates of Indian tropical region. Resource management architecture in the payload for on-demand power and bandwidth will permit applications like HDTV and need-based Very High Data Rate links feasible. Also, it will facilitate applications like E-governance and Village resource Centre for region specific networks to operate independently in the system. Advanced spacecraft bus technologies such as higher weight and power capability, thermal management will support the payload requirements.
- Abstract document
- Manuscript document
IAC-07-B2.6.04.pdf (🔒 authorized access only).
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