Title :
Comment: Criterion for the stability of a fourth-order position control system
Author :
Willems, Jacques
Author_Institution :
University of Gent, Department of Electrical Engineering, Gent, Belgium
Abstract :
It is shown that a result of a recent letter on the global stability of a fourth-order nonlinear position control system is incorrect. Further results on this system are obtained.
Keywords :
nonlinear systems; position control; stability criteria;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19690069