Publication
Title
Quantifying the time-variation in FRF measurements using random phase multisines with nonuniformly spaced harmonics
Author
Abstract
Recently methods have been developed to detect and quantify the influence of time-variation in frequency response function measurements using random excitations. These methods can also be applied to random phase multisine excitations, provided uniformly spaced excited harmonics. However, in quite a few applications, a nonuniform harmonic spacing is required, for example, a quasi-logarithmic spacing to cover a large frequency range, and a random spacing to detect and quantify nonlinear distortions. Therefore, in this paper, the results are extended to random phase multisines with nonuniformly spaced harmonics. An in-depth study of the noise sensitivity (bias and variance) of the proposed procedure is made.
Language
English
Source (journal)
IEEE Transactions on Instrumentation and Measurement
Publication
2014
ISSN
0018-9456
1557-9662
Volume/pages
63:5(2014), p. 1384-1394
ISI
000334608900042
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Publication type
Subject
External links
Web of Science
Record
Identification
Creation 14.09.2015
Last edited 11.06.2017