14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract


Paper FrA5.5

Iwase, Masami (Tokyo Denki Univ.), Shigi, Makoto (Tokyo Denki Univ.), Hatakeyama, Shoshiro (Tokyo Denki Univ.)

FFT-Based Optimal Input Design for Identification of Continuous-Time Systems

Scheduled for presentation during the Invited Session "Input and Perturbation Signal Design for System Identification I" (FrA5), Friday, March 31, 2006, 11:50−12:10, Mulubinba Room

14th IFAC Symposium on System Identification, March 29 - 31, 2006, Newcastle, Australia

This information is tentative and subject to change. Compiled on July 16, 2018

Keywords Input and Excitation Design, Frequency Domain Identification


An optimal input design method for the identification of SISO continuous-time transfer functions is presented. The proposed method is a modified version of a previous work which is an extension of Antoulas et al. The previous requires filters to obtain the derivatives of input and output signals, and the optimality of these filters was pointed out. To solve this problem practically, this paper proposes a method based on Fourier series expansion. A summation of sine waves is used for signal representation. The optimal input is designed by a numerical optimization using the representation. The effectiveness of the proposed algorithm is verified through simulations.