Abstract

The case of an x-y positioning system based on biaxial electromechanical connection is analyzed. Focusing on the mathematical modeling, three model-based observers for state estimation are designed and evaluated. The observers design is made under noise measurements assumptions. The identified parameters of each of the tree observers are computed using the Matlab simulation environment with its identification toolbox. Open loop position errors for circular tracking paths are computed and graphically represented in order to evaluate the best observer design. Increasing gradually in complexity the mathematical model can lead to accurate state estimates that can grant robust control strategies.

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