Effects of Saturation for High-Throughput Satellite Buses

Johan Carvajal Godínez, Jian Guo, Eberhard Gill

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Bus saturation is deemed as one of the primary causes of delays in the data propagation between spacecraft components. However, the conditions under which bus congestion can affect measurements variability were not well characterized before. This paper presents a bus saturation model and a set of experiments to characterize the bus performance of satellite missions for different traffic load, data rate, and synchronization periods. The results showed an increase of measurements variance of up to 18% caused by bus saturation. Additionally, an algorithm was proposed to reduce the data delay by controlling the saturation on the communication channel at the operational level.

Original languageEnglish
Article number8834795
Pages (from-to)1014-1025
Number of pages12
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number2
Publication statusE-pub ahead of print - 2019


  • Bus Saturation
  • Measurement Delay
  • Measurement Variance
  • CAN protocol
  • AOCS
  • FDIR


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