The paper deals with the use of the Huang Hilbert Transform (HHT) for the analysis of transient signals in non linear circuits. Differently from traditional methods that decompose a signal as the sum of apriori adopted waveforms, HHT procedure decomposes the signal of interest in oscillatory modes aposteriori determined, in dependence on the signal characteristics, giving, thus, a better information about the physical characteristics of the observed system. The performance of the proposed analysis method has been evaluated by applying the HHT to the current acquired from an actual RLC circuit during its free natural oscillation. The circuit involves a saturable inductor, therefore the HHT capability of providing physically meaningful information accounting for both non stationarity and non linearity has been appreciated.
Transient analysis in non-linear systems through the Huang Hilbert Transform / Baccigalupi, Aldo; Liccardo, Annalisa. - (2015). (Intervento presentato al convegno 21st IMEKO World Congress on Measurement in Research and Industry tenutosi a Praga).
Transient analysis in non-linear systems through the Huang Hilbert Transform
BACCIGALUPI, ALDO;LICCARDO, ANNALISA
2015
Abstract
The paper deals with the use of the Huang Hilbert Transform (HHT) for the analysis of transient signals in non linear circuits. Differently from traditional methods that decompose a signal as the sum of apriori adopted waveforms, HHT procedure decomposes the signal of interest in oscillatory modes aposteriori determined, in dependence on the signal characteristics, giving, thus, a better information about the physical characteristics of the observed system. The performance of the proposed analysis method has been evaluated by applying the HHT to the current acquired from an actual RLC circuit during its free natural oscillation. The circuit involves a saturable inductor, therefore the HHT capability of providing physically meaningful information accounting for both non stationarity and non linearity has been appreciated.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.