This paper investigates the problem of anti-disturbance fault estimation and attitude tracking tolerant control for a flexible spacecraft subject to actuator faults, external disturbances, input saturation, configuration misalignment. Different form traditional methods, both nonlinear dynamics subsystem system are reconstructed into Takagi–Sugeno fuzzy models, where partial term is remained ass...

Many future earth and space science missions, such as the Magnetospheric Multiscale Mission and Terrestrial Planet Finder, have been proposed that require a high level of coordination between multiple heterogeneous sensors and spacecraft to achieve their mission objectives. On-board autonomy and distributed processing are additional key technologies that can improve the fidelity and quality of ...

This paper describes RAXEM, an AI-based system developed to support human mission planners in the daily task to plan uplink commands for an interplanetary spacecraft. The intelligent environment of RAXEM has been designed to support the users in analyzing the problem and taking planning decisions as a result of an interactive process. The system combines different ingredients like integrating f...

The Modelica Space Flight Dynamics Library has been developed as a unified environment to be used throughout the design cycle of the Attitude and Orbit Control System (AOCS) for a generic multibody, possibly flexible, spacecraft. The library architecture has been recently redesigned, exploiting at its best Modelica’s reusability, flexibility and modularity features. In this contribution the mai...

Solar panel is an important structure of the spacecraft, SADA (Solar Array Drive Assembly is often used as the drive organ to realize the step-skipped gesture adjustment. Firstly, the dis turbance mechanism impact, which was produced from working SADA, to the electro-mechan ism and payload coupling has been taken into account, and the dead, rigid and flexible load S ADA disturbance model was es...

Proposed missions to explore comets and moons will encounter environments that are hostile and unpredictable. A successful explorer must be able to adapt to a wide range of possible operating solutions to survive. Constructing special-purpose behaviors requires information about the environment, which is not available a priori for these missions. Instead, we propose an explorer that uses a flex...