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.
|Number of pages||12|
|Journal||IEEE Transactions on Aerospace and Electronic Systems|
|Publication status||E-pub ahead of print - 2019|
- Bus Saturation
- Measurement Delay
- Measurement Variance
- CAN protocol