Title :
Frequency domain identification with fixed zeros: first generation seismic-AMD benchmark
Author :
Jin, Gang ; Sain, Michael K. ; Spencer, Billie F., Jr.
Author_Institution :
Dept. of Electr. Eng., Notre Dame Univ., IN, USA
Abstract :
Frequency domain linear multi-variable system identification has been extensively studied. Many of the existing algorithms assume no prior knowledge of the underlying system structure, e.g. zero and pole locations that are pre-determined (or fixed). However such information, if available, helps to reduce the error in the interesting frequency range and the number of the model parameters to be estimated. In the paper, an algorithm that explicitly includes the fixed zeros is developed using the polynomial matrix curve-fitting technique. A simple and effective method is introduced to constrain the identified model to be stable. An application study is presented to demonstrate the effectiveness of the identification algorithm
Keywords :
curve fitting; discrete time systems; least squares approximations; optimisation; parameter estimation; poles and zeros; polynomial matrices; state-space methods; structural engineering; transfer functions; first generation seismic active mass damper benchmark; fixed zeros; frequency domain identification; polynomial matrix curve-fitting technique; Acceleration; Accelerometers; Collision mitigation; Curve fitting; Frequency domain analysis; Frequency estimation; Parameter estimation; Seismic measurements; System identification; Transfer functions;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.876647