File:Micro-computer Modeling and Simulation of Conformal Acoustic Array Performance Array Element Degradation Effects (IA microcomputermod1094556423).pdf

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Original file(1,275 × 1,650 pixels, file size: 12.72 MB, MIME type: application/pdf, 294 pages)

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Micro-computer Modeling and Simulation of Conformal Acoustic Array Performance Array Element Degradation Effects   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Fleurant, Sylvain J.
image of artwork listed in title parameter on this page
Title
Micro-computer Modeling and Simulation of Conformal Acoustic Array Performance Array Element Degradation Effects
Publisher
Monterey, California. Naval Postgraduate School
Description

A far-field beam pattern or directivity function of a conformal acoustic array can be generated by performing a three dimensional spatial discrete Fourier transform of the array’s aperture function. The beam pattern is a function of frequency, and both spherical angles of direction. It is strongly dependent on the aperture window, on the applied time delays, and the geometrical configuration of the array. A user-friendly micro-computer software program was created to study the actual array design and the degraded array. The program generates tabular and graphical data in a short period of time (3 min.) for a given frequency, bearing angle (MRA), speed of sound and configuration. Finally, this thesis shows that the degradation of even a few elements seriously influences the sensitivity and the shape of the beam pattern, and the users must draw conclusion on an individual basis.


Subjects: Aperture function; Beam pattern; Conformal acoustic array; Directivity function; Hydrophone; Relative sensitivity; Software simulation
Language English
Publication date December 1985
publication_date QS:P577,+1985-12-00T00:00:00Z/10
Current location
IA Collections: navalpostgraduateschoollibrary; fedlink
Accession number
microcomputermod1094556423
Source
Internet Archive identifier: microcomputermod1094556423
https://archive.org/download/microcomputermod1094556423/microcomputermod1094556423.pdf

Licensing[edit]

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.

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current04:09, 1 July 2020Thumbnail for version as of 04:09, 1 July 20201,275 × 1,650, 294 pages (12.72 MB) (talk | contribs)FEDLINK - United States Federal Collection microcomputermod1094556423 (User talk:Fæ/CCE volumes#Fork8) (batch 1983-1986 #6232)

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