Analysis of damped sinusoidal signals via a frequency-domain interpolation algorithm

Author

Bertocco, Matteo ; Offelli, Carlo ; Petri, Dario

Author_Institution

Dipartimento di Elettronica e Inf., Padova Univ., Italy

Volume

43

Issue

2

fYear

1994

fDate

4/1/1994 12:00:00 AM

Firstpage

245

Lastpage

250

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

Keywords

damping; digital simulation; fast Fourier transforms; frequency-domain analysis; interpolation; linear systems; parameter estimation; signal processing; damped exponential signal; damped sinusoidal signals; discrete Fourier transform; engineering applications; estimation; frequency-domain interpolation algorithm; multiple damped sinewaves; numerical simulation; reliability; spectral interference; wideband noise; Discrete Fourier transforms; Frequency domain analysis; Interference; Interpolation; Noise measurement; Numerical simulation; Parameter estimation; Reliability engineering; Signal analysis; Wideband;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.293428

Filename

293428