Acoustic camera design and implementation /
An acoustic camera for 2-dimensional imaging is developed from concept to physically realized system. The mathematics of the system are described for far-field sound sources, both narrow and broadband. Camera performance for a variety of logarithmically spaced arrays is simulated, as well as stoch...
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| Format: | Thesis Book |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
2002.
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| Subjects: | |
| Online Access: | http://proxy.library.tamu.edu/login?url=http://proquest.umi.com/pqdweb?did=765069411&sid=1&Fmt=2&clientId=2945&RQT=309&VName=PQD |
| Summary: | An acoustic camera for 2-dimensional imaging is developed from concept to physically realized system. The mathematics of the system are described for far-field sound sources, both narrow and broadband. Camera performance for a variety of logarithmically spaced arrays is simulated, as well as stochastically determined configurations from a simulated annealing method. Additionally, hardware development for a 32-microphone log-spaced acoustic camera array, 3.5m by 3.5m, that is built and tested is described. The imaging results of a small aircraft flyover at 400 feet above the array are included. The camera provides actual images that are as detailed as expected from simulations for the aircraft at 250 Hz and 500 Hz. Suggestions are provided for design improvements to image birds as well as bats. |
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| Item Description: | Vita. "Major Subject: Interdisciplinary Engineering". |
| Physical Description: | xii, 106 leaves : illustrations ; 28 cm. + 1 CD ROM. Issued also on microfiche from University Microfilm Inc. |
| Bibliography: | Includes bibliographical references (leaves 71-72). |