tailieunhanh - Sliding-mode based relative pose synchronous control in space autonomous rendezvous

The sliding mode surface function and control law are designed, and the feasibilities are proved. After that, via the simulation, pose synchronization control can be achieved with the sliding mode control law. Finally, the control parameter impact on system is analyzed and the result will help to the control system design. | Journal of Automation and Control Engineering Vol. 4, No. 5, October 2016 Sliding-mode-based Relative Pose Synchronous Control in Space Autonomous Rendezvous Wenhua Cheng, Yasheng Zhang, and Hong Yao Equipment Academy, Beijing, PR China Email: {cheng007wenhua, lizhizys, momoridy}@ Abstract—With the development of space exploration technology and space commercial activities, the number of spacecraft in space is sharp increasing, space resources and environment is facing enormous challenges. Space Autonomous Rendezvous (SAR) is a multidisciplinary complex systems engineering, and has high demands on the precision, reliability, security, and other state constraints. In this paper, the pose synchronization control characteristics are analyzed. Then, the sliding mode surface function and control law are designed, and the feasibilities are proved. After that, via the simulation, pose synchronization control can be achieved with the sliding mode control law. Finally, the control parameter impact on system is analyzed and the result will help to the control system design. Index Terms—space autonomous rendezvous, synchronous control, sliding-mode control, relative pose I. INTRODUCTION With the development of space exploration technology and space commercial activities, the number of spacecraft in space is sharp increasing, space resources and environment is facing enormous challenges. Space Autonomous Rendezvous, related to proximity operations between service spacecraft and target spacecraft, is not only a multi-dimensional state control problem including relative position relative attitude, but also a multidisciplinary complex systems engineering which contains mathematics, physics, mechanics and other basic disciplines, and combined with control, computer simulation and other technical disciplines. Space Autonomous Rendezvous requires that the autonomous rendezvous task is still able to carry out without relying on ground support especially in the blind spot

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