Szczegóły publikacji
Opis bibliograficzny
DFT-based estimation of damped oscillation parameters in low-frequency mechanical spectroscopy / Krzysztof DUDA, Leszek B. MAGALAS, Mariusz MAJEWSKI, Tomasz P. ZIELIŃSKI // IEEE Transactions on Instrumentation and Measurement ; ISSN 0018-9456. — 2011 — vol. 60 no. 11, s. 3608–3618. — Bibliogr. s. 3617–3618, Abstr.
Autorzy (4)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 62162 |
|---|---|
| Data dodania do BaDAP | 2011-11-15 |
| Tekst źródłowy | URL |
| DOI | 10.1109/TIM.2011.2113124 |
| Rok publikacji | 2011 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | IEEE Transactions on Instrumentation and Measurement |
Abstract
In this paper, we analyze and compare the properties of different well-known and also new nonparametric discrete Fourier transform (DFT)-based methods for resonant frequency and logarithmic decrement estimation in application to mechanical spectroscopy. We derive a new DFT interpolation algorithm for a signal analyzed with Rife-Vincent class-I windows and also propose new formulas that extend Bertocco and Yoshida methods. We study errors of the resonant frequency and logarithmic decrement estimation in realistic conditions that include measurement noise and a zero-point drift. We also investigate the systematic errors of the estimation methods of interest. A nonlinear least squares time-domain parametric signal fitting is used to determine the boundaries of statistical efficiency in all tests. © 2011 IEEE.
