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Geometrical Parameter Estimation for Industrial Manipulators Using Two-step Estimation Schemes

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Abstract

This paper proposes a new solution for estimating the kinematic parameters of a manipulator, using a two-step linear estimator. The estimator is based on the recursive least-squares (RLS) method. The main characteristics of the method are that one singularity in estimation is overcome and parameters estimates approach the true values more quickly and smoothly than for algorithms using a one-step estimator. The algorithm can be applied for the estimation of parameters of both serial-link robots and robots having a kinematic closed-loop. Simulation results are given, comparing the proposed method with conventional approaches.

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Marić, P., Potkonjak, V. Geometrical Parameter Estimation for Industrial Manipulators Using Two-step Estimation Schemes. Journal of Intelligent and Robotic Systems 24, 89–97 (1999). https://doi.org/10.1023/A:1008025501030

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