Structural dynamic analysis using wavelets

High-Dynamic Frequency Tracking Using Wavelets

In this article, we investigate the use of wavelets for frequency tracking in the presence of high dynamics. In particular, we construct automatic frequency control loops that are based on correlating the incoming sinusoidal signal with Fourierbased functions and with Daubechies-4 wavelet functions. Both loops are compared based on their abilities to track an input frequency with varying degree...

Dynamic Analysis of Linear Structural Systems with Nonlinear Vibrating Isolators Using Mode Superposition Method

Dynamic Analysis of Linear Structural Systems with Nonlinear Vibrating Isolators Using Mode Superposition Method

Texture analysis using Gabor wavelets

Receptive field profiles of simple cells in the visual cortex have been shown to resemble even-symmetric or odd-symmetric Gabor filters. Computational models employed in the analysis of textures have been motivated by two-dimensional Gabor functions arranged in a multi-channel architecture. More recently Wavelets have emerged as a powerful tool for non-stationary signal analysis capable of enco...

Morphometrical data analysis using wavelets

In this paper, we present a new shape analysis approach using the well-known wavelet transform and exploring shape representation by landmarks. First, we describe the approach adopted to represent the landmarks data as parametric signals. Then, we show the relation of the derivatives of Gaussian wavelet transform applied to the signal-to-differential properties of the shape that it represents. ...