Decentralized active sensor fault tolerance in attitude control of satellite formation flying. (12th October 2020)

• Record Type: Journal Article
• Authors: Saeed Nasrolahi, Seiied; Abdollahi, Farzaneh; Rezaee, Hamed
• Is Part Of: International journal of robust and nonlinear control. Volume 30:Number 18(2020)
• Page Start: 8340
• Page End: 8361
• Publication Date: 2020-10-12
• Subjects: attitude synchronization tracking control -- nonlinear observer -- satellite formation flying -- sensor fault tolerance; Automatic control -- Periodicals; Control theory -- Periodicals; Nonlinear systems -- Periodicals; 629.836
• DOI: 10.1002/rnc.5245
• Languages: English
• ISSNs: 1049-8923

Abstract

Summary: This article presents a decentralized framework of active fault tolerant control for attitude synchronization in satellite formation flying. By employing a nonlinear observer and a static approximator, the fault in both the angular velocity and orientation sensors can be diagnosed whether the sensor belongs to the satellite or its neighbors. The convergence of the observer is guaranteed by utilizing Lyapunov's direct method and Barbalat's lemma. The proposed approach is based on unknown input and requires only the angular velocity and orientation of the states in a decentralized architecture. Moreover, by designing a sensor fault tolerant controller, the tracking synchronization among the satellites' attitudes with individual set‐points is guaranteed and the uniformly ultimate boundedness of the synchronization/tracking errors is provided. The simulation results are presented to illustrate the performance of the developed algorithm.