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RESEARCH PAPERS

Measurement Errors in Closed-Loop Frequency Response Estimates

[+] Author and Article Information
P. W. Davall, P. N. Nikiforuk

College of Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 0W0

J. Dyn. Sys., Meas., Control 102(1), 13-20 (Mar 01, 1980) (8 pages) doi:10.1115/1.3140615 History: Received January 21, 1980; Online July 21, 2009

Abstract

The sampling distributions associated with frequency response estimates of single input, single output closed-loop systems are derived for the case where both the output and feedback signal measurements are subject to added noise. This work is an extension of that done by Goodman [1-3] and Akaike [4, 5] on open-loop systems. Conditions for response estimate bias are investigated and approximate distributions for the power spectra estimates of the added noise terms are derived.

Copyright © 1980 by ASME
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