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Enhanced Discrete-Time Sliding Mode Filter for Removing Noise

Author

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  • Shanhai Jin
  • Xiaodan Wang
  • Yonggao Jin
  • Xiaogang Xiong

Abstract

This paper presents a new discrete-time sliding mode filter for effectively removing noise in control of mechatronic systems. The presented filter is an enhanced version of a sliding mode filter by employing an adaptive gain in determining a virtual desired velocity of the output. Owing to the use of backward Euler discretization, the discrete-time implementation of the filter does not produce chattering, which has been considered as a common problem of sliding mode techniques. Besides that, the state of the filter converges to the desired state in finite time. Numerical example and experimental position control of a mechatronic system are conducted for validating the effectiveness of the filter.

Suggested Citation

  • Shanhai Jin & Xiaodan Wang & Yonggao Jin & Xiaogang Xiong, 2017. "Enhanced Discrete-Time Sliding Mode Filter for Removing Noise," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-12, May.
    • Handle: RePEc:hin:jnlmpe:3134987
    DOI: 10.1155/2017/3134987
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