Abstract
The challenging issue of stabilizing the attitude of an underactuated satellite using two wheels in the non-zero angular momentum mode is investigated in this paper. Considering that this kind of satellite cannot be stabilized by time-invariant smooth control laws to an arbitrary equilibrium point unless it meets some constraint conditions, a nonlinear singular controller is presented, which can drive the line-of-sight of the satellite to an inertia direction from any initial attitude. Several simulation results show the asymptotical stability of the proposed controller under the conservation of the total angular momentum, what's more, the controller is not sensitive to the initial attitude.
| Original language | English |
|---|---|
| Pages (from-to) | 57-65 |
| Number of pages | 9 |
| Journal | Yuhang Xuebao/Journal of Astronautics |
| Volume | 38 |
| Issue number | 1 |
| DOIs | |
| State | Published - 30 Jan 2017 |
Keywords
- Attitude control
- Line-of-sight
- Nonlinear
- Singular controller
- Underactuated
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