Abstract
The positional synchronization control problem is addressed for bilateral teleoperation systems subjected to system uncertainties, exogenous forces, unknown disturbances and asymmetric communication delays. In order to guarantee fast and accurate synchronization performance, a funnel-like curve is predefined to act as the boundary for tracking errors, and the controller design process is divided into two steps based on a backstepping approach. By coordination transformation of state variables, the controller is synthesized to ensure that all transformed variables converge and the system is stabilized. System uncertainties are compensated for by using an RBF(radial basis functions) neural network. Theoretical analysis proves that the closed-loop system is stable and positional synchronization is achieved. Simulation results demonstrate that the proposed method provides satisfactory performance.
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Zhao, Y., Liu, P.X., Wang, H. et al. Funnel-bounded synchronization control for bilateral teleoperation with asymmetric communication delays. Nonlinear Dyn 107, 3641–3654 (2022). https://doi.org/10.1007/s11071-021-07176-7
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DOI: https://doi.org/10.1007/s11071-021-07176-7