Control of Hovering Spacecraft Using Altimetry
| Autor: | Scheeres, D. J., Broschart, S. B., Sawai, Shujiro |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2002 |
| Předmět: |
Engineering
Spacecraft business.industry Applied Mathematics Aerospace Engineering Stability (probability) Ellipsoid Computer Science::Robotics Gravitation Space and Planetary Science Control and Systems Engineering Control theory Asteroid Physics::Space Physics Castalia Trajectory Astrophysics::Earth and Planetary Astrophysics Altimeter Electrical and Electronic Engineering Aerospace engineering business |
| Zdroj: | Journal of Guidance, Control, and Dynamics. 25(4):786-795 |
| ISSN: | 0731-5090 |
| Popis: | The control of a spacecraft hovering over a uniformly rotating asteroid is analyzed. This work builds on the previous analysis of open-loop stability of hovering spacecraft trajectories (Scheeres 1999) by considering the effect of closed-loop control strategies on the overall stability of the hovering trajectory. We characterize the ability of one-dimensional altimetry measurements to stabilize the hovering spacecraft and find some ideal control methodologies that can yield stable hovering trajectories. These ideas are developed initially for the ideal case of a spherical asteroid and are then applied to a rotating ellipsoid and a rotating model of the asteroid Castalia (Hudson and Ostro 1994). The necessary modifications to the measurement and control laws in these more general gravitational cases are characterized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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