Recursive Identification of Hysteresis in Smart Materials
X. Tan and J.S. Baras
2004 American Control Conference, Boston, MA, June 30-July 2 ,2004.
This paper studies recursive identification of hysteresis in smart
materials. A Preisach operator with a piece-wise uniform density
function is used to model the hysteresis. Persistent excitation
conditions for parameter convergence are discussed in terms of the
input to the Preisach operator. Two classes of recursive identification
schemes are explored, one based on the hysteresis output, the other
based on the time difference of the output. Experimental results based
on a magnetostrictive actuator are presented.