Title :
On uncertainty in wavelet-based signal analysis
Author :
Peretto, Lorenzo ; Sasdelli, Renato ; Tinarelli, Roberto
Author_Institution :
Dept. of Electr. Eng., Univ. of Bologna, Italy
Abstract :
The evaluation of uncertainty is a task usually neglected by people performing wavelet-based measurements. In this paper, the wavelet analysis aimed at gauging the synthesis of transient disturbances is considered, and a general expression of the uncertainty affecting this synthesis is provided. Simulations have been performed to validate the above expression, which holds no matter which mother wavelet is used and the kind of disturbance. Results of experiments on actual signals are also reported and discussed.
Keywords :
signal processing; signal synthesis; wavelet transforms; digital signal processing; transient disturbance synthesis; uncertainty evaluation; wavelet analysis; wavelet transforms; wavelet-based signal analysis; Filter bank; Finite impulse response filter; Frequency; Genetic expression; Low pass filters; Performance evaluation; Signal analysis; Signal synthesis; Uncertainty; Wavelet analysis; Digital signal processing; power quality; transient-disturbance synthesis; uncertainty; wavelets;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2005.851210
