Title :
An experimental comparison in the uncertainty estimation affecting wavelet-based signal analysis by means of the IEC-ISO guide and the random-fuzzy approaches
Author :
Salicone, Simona ; Tinarelli, Roberto
Author_Institution :
Politecnico di Milano
fDate :
6/1/2006 12:00:00 AM
Abstract :
The aim of this paper is a comparative estimation of the measurement uncertainty associated with the results of complex measurements, such as the evaluation of the wavelet transform of signals affected by transient disturbances. Uncertainty estimation is performed by means of two different methods, namely 1) the approach suggested by the International Electrotechnical Commission-International Organization for Standardization (IEC-ISO) "Guide to the Expression of Uncertainty in Measurement" (GUM) and 2) the one, recently proposed in the literature, based on the use of random-fuzzy variables. The comparison is performed starting from actual signals generated and acquired by means of a suitable test system
Keywords :
IEC standards; ISO standards; fuzzy systems; measurement standards; measurement uncertainty; random processes; signal processing; wavelet transforms; IEC-ISO guide; measurement uncertainty; random-fuzzy approaches; random-fuzzy variables; uncertainty estimation; wavelet transform; wavelet-based signal analysis; Density measurement; Measurement standards; Measurement uncertainty; Particle measurements; Performance evaluation; Signal analysis; Signal processing; Transient analysis; Wavelet analysis; Wavelet transforms; Random contributions; random-fuzzy variables; systematic contributions; uncertainty estimation; wavelet transform;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.873795
