Publication Date
1995
Document Type
Dissertation/Thesis
First Advisor
Miller, Gerald D. (Professor of electrical engineering)
Degree Name
M.S. (Master of Science)
Legacy Department
Department of Electrical Engineering
LCSH
Noise control
Abstract
A narrowband active noise control (ANC) system with passband disturbance reduction and on-line secondary path estimation is developed in this thesis. The comb filter works parallel with the noise control filter and removes the outband disturbance for the noise control filter. The comb filter also performs as an adaptive noise canceller for the on-line estimation filter to enhance the convergence speed and estimation accuracy. Two reference signal generating techniques using the synchronization signal are presented. They are the pulse width adjustment method by directly processing the synchronization signal and the fundamental frequency estimation method by internally generating the sinusoidal signal. Theoretical analysis, computer simulations and the realtime implementation prove these two methods to be effective ways to generate the narrowband ANC system’s reference signal.
Recommended Citation
Zhang, Ciguo, "Narrowland active noise control techniques" (1995). Graduate Research Theses & Dissertations. 4085.
https://huskiecommons.lib.niu.edu/allgraduate-thesesdissertations/4085
Extent
ix, 85 pages
Language
eng
Publisher
Northern Illinois University
Rights Statement
In Copyright
Rights Statement 2
NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.
Media Type
Text
Comments
Includes bibliographical references (pages [81]-82)