Title :
Estimation of frequency response set from interval data of step response
Author :
Saeki, Masami ; Saito, Koji
Author_Institution :
Hiroshima Univ., Japan
Abstract :
In this paper, a method of estimating a set of frequency response of a stable plant from interval data of step response is given where no parametric model is assumed. The step response is approximated by a piecewise linear function, to which a Fourier transform is applied, and the estimation problem is reduced to a linear programming problem. The result is shown graphically by a vector locus and Bode diagram.
Keywords :
Fourier transforms; frequency response; identification; linear programming; linear systems; step response; Fourier transform; frequency response; identification; linear programming; linear time-invariant systems; piecewise linear function; step response; Fourier transforms; Frequency estimation; Frequency response; Least squares approximation; Least squares methods; Linear programming; Parametric statistics; Piecewise linear approximation; Piecewise linear techniques; Vectors;
Conference_Titel :
SICE 2002. Proceedings of the 41st SICE Annual Conference
Print_ISBN :
0-7803-7631-5
DOI :
10.1109/SICE.2002.1195361
