Abstract
When a vibration is repeatedly driven, it is difficult to identify the multipulse driving series from the observed signal contaminated by additive noise; this is the case even when the transfer system is described by an all pole model and its characteristics are known because an unstable nonlinear optimization method, such as pole-zero modeling, is necessary. Thus, an inverse filter is ordinarily used. However, when the signal-to-noise ratio is low, even this method cannot estimate the multipulse series accurately. Therefore, we propose a stable method to estimate the multipulse driving series from the observed signal by using singular value decomposition and applying a tapering window. Finally, the principle is confirmed experimentally.
Original language | English |
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Pages (from-to) | 2907-2914 |
Number of pages | 8 |
Journal | transactions of the japan society of mechanical engineers series c |
Volume | 54 |
Issue number | 508 |
DOIs | |
Publication status | Published - 1988 |
Externally published | Yes |
Keywords
- Eigenvalue Decomposition
- Inverse Filtering
- Multipulse Driving Series
- Singular Value Decomposition
- Spectrum Estimation
- Tapering Window
- Vibration Analysis
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Industrial and Manufacturing Engineering