A5024871854- Space Satellite Systems and Control
- Astro and Planetary Science
- Planetary Science and Exploration
- Adaptive Control of Nonlinear Systems
- Dynamics and Control of Mechanical Systems
Northwestern Polytechnical University
2020-2025
ABSTRACT This paper proposes a fractional‐order sliding mode control scheme for the tracking of free‐floating space manipulators (FFSM), addressing system uncertainties, external disturbances, and input saturation. First, new non‐singular terminal is designed, incorporating integral term into traditional surface to ensure finite‐time convergence error across all phases. To mitigate chattering, disturbance observer utilized estimate compensate uncertainties unknown disturbances. Subsequently,...
For precise attitude control of space robots intended to capture a target, the inertial parameters target need be well estimated because motions arms and bases are coupled. This paper presents momentum-based, online, one-step identification method for estimating tumbling targets with linear momentum by after capture. obtaining target's mass center, is same as traditional momentum-based method, while two contributions made identifying inertia tensor. The first contribution second-order term...