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Conference paper Open Access

Computational Guidance & Navigation for Bearings-Only Rendezvous – methods and outcomes of GUIBEAR

Serra, Pedro; Lourenço, Pedro; Branco, João; Briz Valero, José; Mammarella, Marco; Peters, Thomas Vincent; Portela, Dario Mora; Manara, Silvia; Bernardini, Daniele; Bemporad, Alberto; Manzillo, Pierluigi Foglia; Witteveen, Jouke; Cropp, Alexander

GUIBEAR is an on-going activity supported by the European Space Agency aimed at the demonstration of the feasibility of bearings-only (B-O) far-range rendezvous in near rectilinear Halo orbits (NROs). The studied scenario is the far-range rendezvous of the HERACLES Lunar Ascent Element (LAE) with the Lunar Orbital Platform – Gateway (LOP-G) that is orbiting the Moon in an NRO.
This activity advances the readiness level of the applicable technologies through a solution based on Computational GNC, structured around a Model Predictive Control framework and tools; and an approach design, development, verification and validation based on iterative prototyping which integrates high-fidelity hosting considerations into the design from a preliminary level: concurrent GNC and software architecture design with hosting, runtime assessment and optical high-fidelity simulations.
This paper: presents the context – mission, system and hosting, and algorithm-level challenges and proposed concepts; details and justifies the architecture and design solutions; outlines the methodologies employed for prototyping verification and validation; provides conclusions on the obtained results.

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