United States Department of Transportation
i
Acoustic detection and monitoring for transportation infrastructure security.
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2009-09-01
[PDF-1.83 MB]
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Abstract:Acoustical methods have been extensively used to locate, identify, and track objects underwater. Some of these applications include detecting and tracking submarines, marine mammal detection and identification, detection of mines and ship wrecks and identification of the types of sediments in sea bottom. Sonar technology has also been used in bathymetric surveys and bottom imaging of bridge sites. This study is to demonstrate and test a method based on sonar technology to detect and identify swimmers and other potential objects underwater in the vicinity of transportation infrastructure such as port facilities and bridges. The underwater environment near these vital facilities is poorly monitored and is a potential route for hostile activities. Acoustics is the most effective tool for monitoring this environment because of sound’s ability to propagate long distance in water. The forward looking sonar technology developed by Farsounder, Inc. will be used for this study. The tests will be carried out at selected bridge locations or at locations closely resembling them. The successful demonstration of this capability will be very significant to monitoring the safety and security of bridges as well as a variety of other water side installations.
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