Nonlinear Dynamics

, Volume 96, Issue 4, pp 2523–2533 | Cite as

Disturbance attenuation via double-domination approach for feedforward nonlinear system with unknown output function

  • Zong-Yao SunEmail author
  • Min Wang
Original Paper


This paper investigates the problem of disturbance attenuation for a class of feedforward nonlinear systems whose output functions are not precisely known. A new control strategy based on a double-domination approach is proposed to cope with serious coexistence of various uncertainties, including unknown output function and external disturbances. The novelty lies in a distinct perspective to applying two domination gains in the constructions of the observer and the controller in the case when output functions are perturbed by unmeasurable errors, which was previously regarded as a rather difficult problem. A numerical simulation is carried out to illustrate the effectiveness of the proposed scheme.


Disturbance attenuation Unknown output function Feedforward nonlinear systems 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Institute of AutomationQufu Normal UniversityQufuChina

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