Development of Reliable On-Board Computer of STUDSAT-2
Small satellites in recent years are emerging in the space innovation and accomplishing the objectives set by bigger satellites. The mission life of this class of satellites is short due to the confinement in mass and energy storage. In addition to this, the commercial off-the-Shelf (COTS) components used in the development challenge the mission life of this satellite due to its higher failure rates. This paper portrays the design of reliable on-board computer of STUDSAT-2, a twin nano-satellite mission being under development by undergraduate students. The paper describes the redundancy method incorporated in the design of satellite at different levels. Finally, the power budget analysis is summarized in the results.
KeywordsSTUDSAT-2 Attitude determination and control system (ADCS) Electrical power system (EPS) Command and data handling (C & DH)
The authors sincerely thank the Small Satellite Review Committee of ISRO and all the scientists of ISRO for their support. The authors are grateful to Visvesvaraya Technological University (VTU) Belagavi and the Consortium of colleges for their monetary and technical support. The authors thank the Principal and the Management of N. M. A. M. Institute of Technology, Nitte for their wholehearted support for the project. The authors are thankful to professors and core members of Team STUDSAT. The authors are thankful to the Project Director, Research Associates of Centre for Small Satellite Research (CSSR), NMIT, Bengaluru.
- 1.Arun Kumar K, Kannan T, Karthik R, Sandya S, Yaji S (2016) On-board computer redundancy for Twin Nano Satellite, STUDSAT-2, LAMSYS-2016Google Scholar
- 2.Dasiga S, Rajulu B, Iyer NR (2014) Open source RTOS implementation for on-board computer in STUDSAT-2. In: IEEE AeroSpace conference, 2014Google Scholar
- 3.Lamichhane K, Kiran M, Kannan T, Sahay D, Sandhya S (2015) Embedded RTOS implementation for Twin Nano-Satellite. In: IEEE metrology for aerospace, 2015Google Scholar
- 4.Asbury MJA, Johannessen R (1995) Single points of failure in complex aviation systems of communication navigation and surveillanceGoogle Scholar
- 5.Yao J, Nakashima Y, Saito M, Hazama Y, Yamanaka R A flexible, self-tuning, fault tolerant functional unit array processor. In: IEEE computer society, 0272-1732/14Google Scholar
- 6.Tannous O, Xing L, Rui P, Xie M, Ng SH Redundancy allocation for series-parallel warm-standby systems. In: IEEE, 978-1-4577-0739-1/11Google Scholar
- 7.Amari SV Redundancy optimization problem with warm-standby redundancy, In: IEEE, 978-1-4244-5103-6/10Google Scholar
- 8.Gohil S, Basavalingarajaiah A, Ramachandran V Redundancy management and synchronization in avionics communication products. In: IEEE, 978-1-4577-0592-2/11Google Scholar
- 9.Vinci E, Saotome O Reliability of on-board computer for ITASAT university satellite. In: IEEE, 978-1-4244-7785-2/10Google Scholar
- 10.Pillay R, Punnekkat S, Dasgupta S An improved redundancy scheme for the optimal utilization of onboard computers. In: IEEE, 978-1-4244-4859-3/09Google Scholar