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Updated: Jun 9, 2026

Robotic Mirror Therapy System for Functional Recovery of Hemiplegic Arms
Published on: August 15, 2016
Operational space trajectory tracking control of robot manipulators endowed with a primary controller of synthetic
Javier Moreno-Valenzuela1, Luis González-Hernández
1Centro de Investigación y Desarrollo de Tecnología Digital del IPN, CITEDI-IPN, Mesa de Otay, Tijuana, Mexico. moreno@citedi.mx
Abstract:
In this paper, a new control algorithm for operational space trajectory tracking control of robot arms is introduced. The new algorithm does not require velocity measurement and is based on (1) a primary controller which incorporates an algorithm to obtain synthesized velocity from joint position measurements and (2) a secondary controller which computes the desired joint acceleration and velocity required to achieve operational space motion control. The theory of singularly perturbed systems is crucial for the analysis of the closed-loop system trajectories. In addition, the practical viability of the proposed algorithm is explored through real-time experiments in a two degrees-of-freedom horizontal planar direct-drive arm.
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