Improved frequency response function measurements for random noise excitations

Author

Schoukens, Johan ; Rolain, Yves ; Pintelon, Rik

Author_Institution

Electr. Meas. Dept., Vrije Univ., Brussels, Belgium

Volume

47

Issue

1

fYear

1998

fDate

2/1/1998 12:00:00 AM

Firstpage

322

Lastpage

326

Abstract

This paper presents a method to get improved nonparametric frequency response function (FRF) measurements for random noise excitations. The basic idea is to remove the effect of leakage on the FRF by iterative improvement

Keywords

FIR filters; convolution; correlation theory; discrete Fourier transforms; discrete time systems; filtering theory; frequency response; frequency-domain analysis; identification; iterative methods; linear systems; measurement errors; random noise; transfer functions; transient response; FIR filter; bandpass filter; discrete Fourier transforms; discrete time system; frequency response function measurements; inverse FFT; iterative improvement; leakage effect removal; nonparametric frequency response function; nonparametric identification; random noise excitations; systematic errors; Discrete Fourier transforms; Electric variables measurement; Frequency estimation; Frequency measurement; Frequency response; Noise level; Noise measurement; Psychology; Transfer functions; Transient analysis;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.728842

Filename

728842