학술논문

Robust identification from band-limited data
Document Type
Periodical
Source
IEEE Transactions on Automatic Control IEEE Trans. Automat. Contr. Automatic Control, IEEE Transactions on. 42(9):1318-1325 Sep, 1997
Subject
Signal Processing and Analysis
Robustness
Transfer functions
H infinity control
Algebra
Bandwidth
Noise measurement
Noise level
Frequency measurement
Linear approximation
Linear systems
Language
ISSN
0018-9286
1558-2523
2334-3303
Abstract
Consider the problem of identifying a scalar bounded-input/bounded-output stable transfer function from pointwise measurements at frequencies within a bandwidth. We propose an algorithm which consists of building a sequence of maps from data to models converging uniformly to the transfer function on the bandwidth when the number of measurements goes to infinity, the noise level to zero, and asymptotically meeting some gauge constraint outside. Error bounds are derived, and the procedure is illustrated by numerical experiments.