A robust discrete-time adaptive control approach for systems with almost periodic time-varying parameters

作者：Abidi Khalid^*

来源：International Journal of Robust and Nonlinear Control, 2014, 24(1): 166-178.

DOI：10.1002/rnc.2881

• periodic adaptation
• time-varying parameters
• adaptive control
• discrete-time system
• nonlinear process

A periodic adaptive control approach is proposed for a class of nonlinear discrete-time systems with time-varying parametric uncertainties which are almost periodic, and the only prior knowledge is the periodicity. The new adaptive controller updates the parameters and the control signal periodically in a pointwise manner over one entire period, in the sequel that achieves a bounded tracking convergence. The result is further extended to scenarios with unknown input gain, higher order dynamics, and tracking.

• 出版日期2014-1-10