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. 2017 Dec 28;18(1):66. doi: 10.3390/s18010066

Figure 8.

Figure 8

Actuator position tracking results with subject 1: (a) actuator position tracking results; (b) the actuator tracking errors; (c) the estimated external torque (using ABS-SMC) and (d) the control output tuning processing via ABS-SMC disturbance estimation.