This survey presents various methods of improving the overall estimation quality in the class
of extended state observers (ESO), which estimate not only the conventional states of the …

In this work, a practically relevant control problem of compensating harmonic uncertainties is
tackled. The problem is formulated and solved here using an active disturbance rejection …

The problem of impact angle control guidance for a field-of-view constrained missile against
non-maneuvering or maneuvering targets is solved by using the sliding mode control theory …

The paper presents an application of a special case of an Active Disturbance Rejection
Controller (ADRC) in governing a proper realization of basic limb rehabilitation trainings …

In this work, the problem of trajectory tracking in uncertain underactuated systems is
considered. To solve it, a combination of differential flatness and active disturbance rejection …

A new active disturbance rejection control-based (ADRC) scheme is proposed in this work to
address the problem of tracking/rejecting periodic signals of unknown and varying …

Designing a proportional derivative (PD) controller has as main problem, to obtain the
derivative of the output error signal when it is contaminated with high frequency noises. To …

In this paper, customized series elastic actuator (SEA) force and position control solutions
are proposed to achieve high performance while keeping the bandwidth low. In the context …

In this paper, a problem of verification under what conditions it is possible to reject
disturbances in a control system with an active disturbance rejection control scheme (ADRC) …

The extended state observer (ESO) is a key component in any active disturbance rejection
control (ADRC) scheme. Its discrete implementation is thus crucial in practical applications …