Minimum-Eigenvalue-Based Fault-Tolerant Adaptive Dynamic Control for Spacecraft

What is it about?

Serving purposes ranging from communication to navigation and meteorology, spacecraft require advanced technologies and attitude-tracking maneuvers to successfully accomplish modern orbital missions such as Earth monitoring and on-orbit servicing. As spacecraft operate in drastic environments that expose them to extreme high and low temperature cycles and intense radiations, their actuators frequently encounter faults. These faults result in losses of attitude that entirely jeopardize the accomplishment of orbital missions and may even lead to the irreversible loss of the spacecraft. Although challenging, this safety risk may be mitigated by using a fault-tolerant control (FTC) scheme capable of tolerating possible actuator faults, thereby guaranteeing an acceptable attitude-tracking performance to ensure the mission's success.

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