Metal forming processes today operate with astounding productivity, repeatably creating
precise parts in high volumes out of the stock sheet and bar products of the upstream metals …

In the control field, most of the research papers focus on feedback control, but few of them
have discussed about feedforward control. Therefore, a review of the most commonly used …

Abstract System inversion is at the basis of many feedforward and learning control
algorithms. The aim of this paper is to analyze several of these approaches in view of their …

Noncollocated sensors and actuators, and/or fast sample rates with plants having high
relative degree, can lead to nonminimum-phase (NMP) discrete-time zero dynamics that …

In this paper, a novel perfect tracking control method based on multirate feedforward control
is proposed. The advantages of the proposed method are that:(1) the proposed multirate …

Accurate pattern transfer, coupled with stringent requirements for throughput and quality in
lithography systems, necessitates the wafer scanner to execute an aggressive motion with …

Iterative learning control (ILC) approaches often exhibit poor extrapolation properties with
respect to exogenous signals, such as setpoint variations. This brief introduces rational …

Repetitive Control Theory and Applications - A Survey Page 1 1446 Copyright © 1996 IFAC
13th Triennial World Congress, Sun Francisco, tJ SA 2a-14 1 REPETITIVE CONTROL …

Noncollocated sensors and actuators, and/or fast sample rates with plants having high
relative degree, can lead to nonminimum-phase (NMP) discrete-time zero dynamics that …

A free piston engine removes the mechanical constraint on the piston motion by eliminating
the crankshaft. The extra degree of freedom offers many advantages for reducing fuel …