Hysteresis is an inherent characteristic of piezoelectric materials that can be determined by
not only the historical input but also the input signal frequency. Hysteresis severely …

The coloured noise is ubiquitous in industrial processes. This paper addresses the
identification problem for the nonlinear feedback systems with coloured noise. Firstly, a …

Atomic force microscopy (AFM) provides a platform for high-resolution topographical
imaging and the mechanical characterization of a wide range of samples, including live …

This work introduces an output feedback Active Disturbance Rejection Control scheme
applied to the nanoposition control of uncertain Linear Ultrasonic Motors. The proposed …

This paper presents a novel “Constant in gain Lead in phase”(CgLp) element using
nonlinear reset technique. PID is the industrial workhorse even to this day in high-tech …

The ever-growing demands on speed and precision from the precision motion industry have
pushed control requirements to reach the limitations of linear control theory. Nonlinear …

In this article, a novel command-filtered adaptive control scheme is proposed for uncertain
asymmetric hysteretic nonlinear systems with unknown external disturbances, where the …

This article introduces a closed-loop frequency analysis tool for reset control systems. To
begin with sufficient conditions for the existence of the steady-state response for a closed …

The fast piezo-driven scanner (FPDS) compensates for vibrations in the unmanned aerial
vehicle (UAV) image stabilization system. However, the hysteresis nonlinearity reduces the …

A controller with the frequency response of a complex order derivative may have a gain that
decreases with frequency, while the phase increases. This behaviour may be desirable to …