Design of α-filter-based UDE controllers considering finite control bandwidth

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


Recently, a new first-order α-filter for uncertainty and disturbance estimator-based control was proposed to achieve reduced tracking and estimation errors in the presence of fast-varying uncertainties and shown to be capable of keeping the steady-state error within acceptable limits by appropriately choosing filter parameters. The purpose of this note is to demonstrate operation limits of the new filter and quantify performance enhancement by taking practical implementation issues and restrictions into account.

Original languageEnglish
Pages (from-to)411-416
Number of pages6
JournalNonlinear Dynamics
Issue number1-2
StatePublished - 10 Jul 2015
Externally publishedYes


  • Filter design
  • Robust nonlinear control
  • Uncertainty and disturbance estimator (UDE)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering


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