Title :
Least squares fitting to a rational transfer function with time delay
Author_Institution :
Dept. of Automatic Control, Lund Inst. of Technol., Sweden
Abstract :
Given the frequency response of a system for a finite set of frequencies it is possible to fit the data to a rational transfer function with a time delay. The method used is the equation error version of the weighted least squares method. This leads to a one-dimensional optimization problem which is solved by a modified Newton-Raphson method. The mentioned algorithm is implemented in the matrix manipulation language PRO-MATLAB
Keywords :
least squares approximations; optimisation; transfer functions; frequency response; least squares approximations; least squares fitting; matrix manipulation language PRO-MATLAB; modified Newton-Raphson method; one-dimensional optimization; rational transfer function; time delay; weighted least squares method;
Conference_Titel :
Control, 1988. CONTROL 88., International Conference on
Conference_Location :
Oxford
Print_ISBN :
0-85296-360-2
