### Abstract

The goal of the present work is the development of a decentralized attitude control algorithm for satellite formation flying. The attitude control algorithm of the formation flying is tested in the orbital-reference coordinate for the sake of applying the control algorithms to Earth observing missions. Because of the nonlinearity of the dynamic system, the State-Dependent Riccati Equation (SDRE) technique is applied and then the results are compared to those from linear control methods, mainly the PD and LQR controllers. In order to complement a constant control strategy for relative attitude error in formation, a selective control strategy is suggested. This strategy guarantees not only a reduction of unnecessary calculation but also, the stability of the attitude control algorithm of satellite formation. The results have shown that the SDRE technique can robustly drive the attitude errors to converge to zero.

Original language | English |
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Title of host publication | Astrodynamics 2007 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Astrodynamics Specialist Conference |

Pages | 2441-2459 |

Number of pages | 19 |

Volume | 129 PART 3 |

Publication status | Published - 2008 Dec 1 |

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### All Science Journal Classification (ASJC) codes

- Aerospace Engineering
- Space and Planetary Science

### Cite this

*Astrodynamics 2007 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Astrodynamics Specialist Conference*(Vol. 129 PART 3, pp. 2441-2459)

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*Astrodynamics 2007 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Astrodynamics Specialist Conference.*vol. 129 PART 3, pp. 2441-2459.

**A decentralized attitude control for spacecraft formation flying via the state-dependent riccati equation technique.** / Chang, Insu; Park, Sang Young; Choi, Kyu Hong.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A decentralized attitude control for spacecraft formation flying via the state-dependent riccati equation technique

AU - Chang, Insu

AU - Park, Sang Young

AU - Choi, Kyu Hong

PY - 2008/12/1

Y1 - 2008/12/1

N2 - The goal of the present work is the development of a decentralized attitude control algorithm for satellite formation flying. The attitude control algorithm of the formation flying is tested in the orbital-reference coordinate for the sake of applying the control algorithms to Earth observing missions. Because of the nonlinearity of the dynamic system, the State-Dependent Riccati Equation (SDRE) technique is applied and then the results are compared to those from linear control methods, mainly the PD and LQR controllers. In order to complement a constant control strategy for relative attitude error in formation, a selective control strategy is suggested. This strategy guarantees not only a reduction of unnecessary calculation but also, the stability of the attitude control algorithm of satellite formation. The results have shown that the SDRE technique can robustly drive the attitude errors to converge to zero.

AB - The goal of the present work is the development of a decentralized attitude control algorithm for satellite formation flying. The attitude control algorithm of the formation flying is tested in the orbital-reference coordinate for the sake of applying the control algorithms to Earth observing missions. Because of the nonlinearity of the dynamic system, the State-Dependent Riccati Equation (SDRE) technique is applied and then the results are compared to those from linear control methods, mainly the PD and LQR controllers. In order to complement a constant control strategy for relative attitude error in formation, a selective control strategy is suggested. This strategy guarantees not only a reduction of unnecessary calculation but also, the stability of the attitude control algorithm of satellite formation. The results have shown that the SDRE technique can robustly drive the attitude errors to converge to zero.

UR - http://www.scopus.com/inward/record.url?scp=60349106325&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=60349106325&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9780877035435

VL - 129 PART 3

SP - 2441

EP - 2459

BT - Astrodynamics 2007 - Advances in the Astronautical Sciences, Proceedings of the AAS/AIAA Astrodynamics Specialist Conference

ER -