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Vibration Filter Using Vector Channel Periodic Lattice  

Hwang, Won-Gul (School of Mechanical Systems Engineering, Chonnam National University)
Im, Hyung-Eun (School of Mechanical Systems Engineering, Chonnam National University)
Publication Information
Journal of Mechanical Science and Technology / v.20, no.12, 2006 , pp. 2043-2051 More about this Journal
Abstract
This paper considered identification of vibration characteristics of flexible structure with vector channel periodic lattice filter. We present an algorithm for AR coefficients for the vector-channel lattice filters, and characteristic equation and transfer function are derived from these coefficients. Vibration lattice filter is then constructed from the vector channel lattice filter, and performance of this vibration filter is tested with a test signal which is a combination of many sine waves to compare the performance of scalar and vector channel lattice. Also it is applied to the cantilever data to identify properties of the system, such as natural frequencies and damping ratios, to show its performance.
Keywords
Vector Channel Lattice Filter; Vibration Filter; Autoregressive (AR) Coefficients; Residual Error; Reflection Coefficient;
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