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INVESTIGATION OF THE EFFECT OF SOURCE MEASUREMENT TECHNIQUES ON THE COHERENCE FUNCTION

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Date Issued:
1978
Summary:
This report presents the results of an experimental investigation of the effects of using different source measurement techniques in implementing the coherence function for source identification purposes. Frequency domain measurements leading to the coherence function are developed with regard to providing a causal relation for a single input, single output, linear system. The use of a near microphone or accelerometer for source measurements is presented with particular interest paid to the effect of introducing noise into the input measurement. Experimental results show that while a near microphone provides a more accurate coherence statement than an accelerometer, the input of correlated noise may be a problem. The possibility of an empirical criteria for the source to noise signal difference at the near microphone is raised as a means to help avoid this problem.
Title: AN INVESTIGATION OF THE EFFECT OF SOURCE MEASUREMENT TECHNIQUES ON THE COHERENCE FUNCTION.
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Name(s): BULLWINKEL, PAUL EDWARD.
Florida Atlantic University, Degree grantor
Dunn, Stanley E., Thesis advisor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 1978
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 125 p.
Language(s): English
Summary: This report presents the results of an experimental investigation of the effects of using different source measurement techniques in implementing the coherence function for source identification purposes. Frequency domain measurements leading to the coherence function are developed with regard to providing a causal relation for a single input, single output, linear system. The use of a near microphone or accelerometer for source measurements is presented with particular interest paid to the effect of introducing noise into the input measurement. Experimental results show that while a near microphone provides a more accurate coherence statement than an accelerometer, the input of correlated noise may be a problem. The possibility of an empirical criteria for the source to noise signal difference at the near microphone is raised as a means to help avoid this problem.
Identifier: 13930 (digitool), FADT13930 (IID), fau:10754 (fedora)
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): College of Engineering and Computer Science
Thesis (M.S.E.)--Florida Atlantic University, 1978.
Subject(s): Spectrum analysis--Research
Sound analyzers--Research
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/13930
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.