An algorithm for the estimation of the parameters that characterize a linear combination of damped sinusoids is presented. The procedure is based on an interpolation scheme applied to the discrete Fourier transform samples. At first, a single damped exponential signal is analyzed; then the results are extended to multiple damped sinewaves. Numerical simulations show the good accuracy obtained under various measurement conditions; both the effects of spectral interference and wideband noise are considered, proving the reliability of the proposed method in a number of engineering applications
ANALYSIS OF DAMPED SINUSOIDAL SIGNALS VIA A FREQUENCY-DOMAIN INTERPOLATION ALGORITHM
BERTOCCO, MATTEO;OFFELLI, CARLO;
1994
Abstract
An algorithm for the estimation of the parameters that characterize a linear combination of damped sinusoids is presented. The procedure is based on an interpolation scheme applied to the discrete Fourier transform samples. At first, a single damped exponential signal is analyzed; then the results are extended to multiple damped sinewaves. Numerical simulations show the good accuracy obtained under various measurement conditions; both the effects of spectral interference and wideband noise are considered, proving the reliability of the proposed method in a number of engineering applications
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
