Title :
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
fDate :
2/1/1998 12:00:00 AM
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;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
