CEAS EuroGNC 2019
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Distributed Autonomous Guidance, Navigation and Control loop for Formation Flying Spacecraft Reconfiguration
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| Stefano Silvestrini |
PhD Candidate, Politecnico di Milano, Milano, Italy | | Vincenzo Pesce |
PhD Candidate, Politecnico di Milano, Milano, Italy | | Michèle Lavagna |
Associate Professor, Politecnico di Milano, Milano, Italy |
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| Abstract:
This paper presents a continuous low-thrust control algorithm coupled with the decentralized navigation filter, suitable for distributed space systems reconfiguration. The dynamics of the satellites, representative of J2-perturbed elliptical orbits, is expressed in terms of the relative orbital elements (ROEs). Since the relative orbit determination measurements are typically referred to the Cartesian state of each satellite, a linear mapping between the set of ROE and the Cartesian coordinates expressed in the local-vertical-local-horizontal (LVLH) reference frame is derived. The desired set of ROE at each time-step is determined based on the contribution of counter-acting Artificial Potential Fields (APFs) defined in the ROE space. A feedback control is designed to track the desired state, whose stability is analysed using Lyapunov theory. The guidance, navigation and control algorithms are tested in a high-fidelity numerical orbit propagator for two different operational scenarios, one of which is accurately chosen to show a representative collision avoidance manoeuvre. The results demonstrate the effectiveness of the algorithm for reconfiguration manoeuvres involving relative distances ~ 1e+2 m with limited fuel consumption and constrained available thrust (? 1 m.N). The proposed algorithm enhances the flexibility of traditional reconfiguration with collision avoidance strategies respecting the robustness requirement and the computational effort.
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| Keywords: Multi-vehicle cooperative decision and control; Navigation; Spacecraft orbit guidance |
 View PDF CEAS-GNC-2019-011 |
| Stefano Silvestrini, Vincenzo Pesce, Michèle Lavagna: Distributed Autonomous Guidance, Navigation and Control loop for Formation Flying Spacecraft Reconfiguration. Proceedings of the 2019 CEAS EuroGNC conference. Milan, Italy. April 2019. CEAS-GNC-2019-011.
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| BibTeX entry:
@Incollection{CEAS-GNC-2019-011,
authors = {Silvestrini, Stefano and Pesce, Vincenzo and Lavagna, Michèle},
title = {Distributed Autonomous Guidance, Navigation and Control loop for Formation Flying Spacecraft Reconfiguration},
booktitle = {Proceedings of the 2019 {CEAS EuroGNC} conference},
address = {Milan, Italy},
month = apr,
year = {2019},
note = {CEAS-GNC-2019-011}
}
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