A satellite fault detection system based on telemetry data using statistical process control and time-domain feature extraction

In spacecraft operations, accurately detecting anomalies in telemetry is essential but often requires complex, time-consuming methods. With the growing number of low-earth orbit missions, there is an urgent need to streamline this process. In this paper, we introduce an efficient real-time fault detection system that specifically addresses three critical faults within a spacecraft’s power subsystem: loss of solar string(s), increase in the battery’s internal resistance, and excessive power consumption. We apply industrial statistical process control and time-domain feature extraction techniques to create algorithms for enhanced fault detection. Our approach involves extensive simulations using a dynamic model of the power subsystem, allowing us to develop a method that is both innovative and practical. This research represents a step forward in the field, as we utilize statistical process control for real-time health monitoring of spacecraft, providing a more efficient and accurate means of analysis.