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This article describes the design of a linear observer-linear controller-based robust output feedback scheme for output reference trajectory tracking tasks in an input delayed omnidirectional mobile robot. The unknown, possibly state-dependent, additive nonlinearity influencing the tracking error dynamics, is modeled as an absolutely uniformly bounded, additive unknown “time-varying disturbance” input...
In this paper, the trajectory-tracking control problem of an omnidirectional mobile robot (also known as a type (3,0)) is addressed and solved. The proposed controller takes into account the mobile robot dynamic model and it is based on a particular passivity-based control formulation, widely applied in power electronics, resulting in linear time-varying controllers. It is formally proved that the...
Varying time delays prevent successful operation of control loops closed over communication networks, i.e. networked control system (NCS). To mitigate the negative effects of delays, existing research mainly focuses on deriving control approaches/solutions built upon the assumption that the operation of control loops is synchronized at the sampling instants. In this paper we propose an approach to...
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