The problem of control input saturation and measurement uncertainties in spacecraft attitude
control systems is investigated in this paper. Asymmetric limitation of the control torque and …

Most of the available control schemes for pure-feedback systems are derived based on the
backstep** technique. On the contrary, this paper presents a novel adaptive control …

An improved equivalent-input-disturbance (EID) approach is devised to enhance the
disturbance-rejection performance for a strictly proper plant with a state delay in a modified …

This paper presents an adaptive neural control design for nonlinear pure-feedback systems
with an input time-delay. Novel state variables and the corresponding transform are …

This paper studies the disturbance rejection and the periodic signal tracking problems for
linear systems with unknown exogenous disturbances under limited communication …

This paper presents a linear-extended-state-observer-based repetitive control (RC) method
to enhance the disturbance rejection performance and tracking performance for a nonlinear …

This paper proposes a disturbance observer (DOB) design procedure for general multi-input-
multi-output (MIMO) systems based on the H-infinity synthesis. The DOB is designed by …

Repetitive control has proven to be an efficient control technique in power factor correction
by active filtering. Unfortunately, this technique shows a dramatic performance decay when …

This article presents a command-filtered backstep** repetitive control (RC) method for a
class of uncertain nonlinear systems with multiple disturbances, which is based on additive …

In many industrial robotic servo applications there is a need to track periodic reference
signals and/or reject periodic disturbances. Moreover, time-delays are usually unavoidable …