Wavelet Approach in Noise Enhancement of Balance Control

This paper aims to analyze the dynamic characteristics of the postural sway measurements, the curves of the velocity and acceleration of the postural sway measurements were used. The curves of smoothed velocity and acceleration were got through the filter of Haar wavelet packet decomposing function. At the increasing of age, the velocity and acceleration of the postural sway measurements are increasing, but they decrease when the noise are introduced. For those non-stochastic signals of certain physical explanation, the context method is suitable for analyzing the status of dynamic system