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- Title
Output feedback elliptical orbital rendezvous via state-dependent Riccati differential equations.
- Authors
Nai-Gang Cui; Bin Zhou; Guang-Ren Duan
- Abstract
This article studies spacecraft rendezvous with the target spacecraft in an arbitrary elliptical orbit. Based on the linearised Tschauner-Hempel equations, state-dependent Riccati differential equation (RDE)-based approaches are proposed to solve the problem. An observer-based output feedback controller is established. To implement the proposed controller, only some forward-type RDEs need to be integrated online, indicating that the controllers can be implemented online as long as some positive-definite initial conditions are given. Moreover, it is shown analytically that the closed-loop system under the proposed feedback controller is exponentially asymptotically stable. Numerical examples show the effectiveness of the proposed approach.
- Subjects
DIFFERENTIAL equations; ELLIPTICAL orbits; BESSEL functions; ELECTRONIC controllers; CONTROL theory (Engineering)
- Publication
IET Control Theory & Applications (Wiley-Blackwell), 2013, Vol 7, Issue 10, p1429
- ISSN
1751-8644
- Publication type
Article
- DOI
10.1049/iet-cta.2012.0907