Accession Number : ADA524490


Title :   Environmental Acoustic Considerations for Passive Detection of Maritime Targets by Hydrophones in a Deep Ocean Trench


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Biediger, Jeremy S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a524490.pdf


Report Date : Jun 2010


Pagination or Media Count : 81


Abstract : This thesis explores the potential advantage of deep ocean trench placement of an acoustic sensor network. The hypothesis is that a hydrophone deployed in a deep ocean trench will operate in an environment of reduced ambient noise such that passive maritime surveillance may be performed with relatively high signal-to-noise ratio (SNR). Barrier or tripwire coverage along the oceanic trench is made possible by virtue of networked acoustic communication among widely spaced hydrophones. Physics-based hydro-acoustic propagation modeling supports analysis of target-to-sensor propagation and networked acoustic communication links in representative trench environments.


Descriptors :   *ACOUSTIC DETECTORS , *HYDROPHONES , *OCEAN SURVEILLANCE , *TRENCHES , TARGETS , COMMUNICATIONS NETWORKS , HYPOTHESES , NOISE REDUCTION , OCEANS , AMBIENT NOISE , OCEAN ENVIRONMENTS , DEEP OCEANS , THESES , PASSIVE SYSTEMS , ACOUSTIC COMMUNICATIONS , NETWORKS , SIGNAL TO NOISE RATIO


Subject Categories : Underwater and Marine Navigation and Guidance
      Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE