Contour Tracking Control Based on Extended State Observer for Multiaxis Motion System

<div>Simulation results of the 3-axis motion control system (saddle-shape curve without ESO). (a) Three-axis position tracking error. (b) Contour error (without ESO).</div>

Mathematical Problems in Engineering

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Figure 4

Figure 4: Contour Tracking Control Based on Extended State Observer for Multiaxis Motion System 