Transactions of Nanjing University of Aeronautics & Astronautics
Autonomous Spacecraft Formation Flying Implementation Near Mars Synchronous Orbit Based on Fuzzy Logic Control
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Abstract:
In response to the need for a supportive on-orbit platform for future Mars exploration missions， this paper proposes the design and implementation of an autonomous spacecraft formation flying system near the Martian synchronous orbit using fuzzy learning-based intelligent control. A detailed analysis of spacecraft relative motion in the Mars environment is conducted， deducing the necessary conditions to reach the Martian synchronous orbit constraints. The modified Clohessy-Wiltshire （C-W） equation with Martian J2 （Oblateness index） perturbation is used as a reference to design a fuzzy learning-based intelligent and robust nonlinear control approach， which helps to autonomously track the desired formation configuration and stabilizes it. An introduction to spacecraft propulsion mechanisms is provided to analyze the feasibility of using electrical thrusters for spacecraft formation configuration tracking and stabilization in Martian synchronous orbits. The simulations show the effectiveness of the proposed control system for long-term on-orbit operations and reveal its reliability for designing intelligent deep-space formation flying configurations， such as an autonomous Mars observatory， a Martian telescope， or an interferometer.
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This work was supported by the National Laboratory of Space Intelligent Control （No.HTKJ2023KL502007）； and the Chinese Government Scholarship （CSC）.
Clc Number:
V448
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