Velocity-Free Fault-Tolerant Rendezvous Law Based on Dual-Layer Adaptive Algorithm

Considering the scenario that the obstinate and difficult-repaired sensor and actuator failure always occurs during the spacecraft rendezvous guidance phase and may cause terrible performance, this paper studies the fault-tolerant guidance method and proposes a velocity-free guidance algorithm. Abov...

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Bibliographic Details
Published in:IEEE access Vol. 8; pp. 135706 - 135721
Main Authors: Wang, Wei, Ji, Yi, Lin, Defu, Shi, Xingwei, Zhao, Jianting
Format: Journal Article
Language:English
Published: Piscataway IEEE 2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Actuator failure
actuator faults
Actuators
Adaptive algorithms
Adaptive systems
Algorithms
dual-layer adaptation
Dynamic stability
Fault tolerance
Guidance (motion)
Monte Carlo simulation
Observers
Orbits
Planets
Rendezvous guidance
Robustness
Robustness (mathematics)
Space rendezvous
Space vehicles
Spacecraft guidance
Spacecraft rendezvous
super twisting algorithm
Twisting
Velocity
Velocity errors
velocity-free
ISSN:2169-3536, 2169-3536
Online Access:Get full text
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Summary:Considering the scenario that the obstinate and difficult-repaired sensor and actuator failure always occurs during the spacecraft rendezvous guidance phase and may cause terrible performance, this paper studies the fault-tolerant guidance method and proposes a velocity-free guidance algorithm. Above guidance law is based on a dual-layer adaptive multi-variable super-twisting-like algorithm, where two waving gains are introduced to autonomously adjust the system trajectory subject to the relative velocity. Hence, the complex parameter selection problem is overcome. Moreover, to overcome the sensor fault in relative-velocity channel, a robust observer which can drive the velocity error converge to zero in a small finite time is presented. To test the effectiveness and stability of the proposed guidance law, considering actuator faults, second-order dynamics and saturation, numerical simulations including comparisons and Monte-Carlo are carried out and the results demonstrate above properties.
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ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2020.3009662