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Data-Based Control for Humanoid Robots Using Support Vector Regression, Fuzzy Logic, and Cubature Kalman Filter

Author

Listed:
  • Liyang Wang
  • Ming Chen
  • Gai Li
  • Yongqing Fan

Abstract

Time-varying external disturbances cause instability of humanoid robots or even tip robots over. In this work, a trapezoidal fuzzy least squares support vector regression- (TF-LSSVR-) based control system is proposed to learn the external disturbances and increase the zero-moment-point (ZMP) stability margin of humanoid robots. First, the humanoid states and the corresponding control torques of the joints for training the controller are collected by implementing simulation experiments. Secondly, a TF-LSSVR with a time-related trapezoidal fuzzy membership function (TFMF) is proposed to train the controller using the simulated data. Thirdly, the parameters of the proposed TF-LSSVR are updated using a cubature Kalman filter (CKF). Simulation results are provided. The proposed method is shown to be effective in learning and adapting occasional external disturbances and ensuring the stability margin of the robot.

Suggested Citation

  • Liyang Wang & Ming Chen & Gai Li & Yongqing Fan, 2016. "Data-Based Control for Humanoid Robots Using Support Vector Regression, Fuzzy Logic, and Cubature Kalman Filter," Mathematical Problems in Engineering, Hindawi, vol. 2016, pages 1-19, June.
    • Handle: RePEc:hin:jnlmpe:1984634
    DOI: 10.1155/2016/1984634
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