Ambient Noise and Signal-to-Noise Profiles in IOMEDEX

Marshall, Samuel W.

Ambient Noise and Signal-to-Noise Profiles in IOMEDEX

2006

Marshall, Samuel W.

Ambient noise vertical profiles in the Ionian Sea show temporal fluctuations in a few minutes at low, shipping-related frequencies to a few hours at higher, wind/sea-related frequencies. In the mean, ambient noise levels decrease with increasing depth over the frequency band of study: 20-300 Hz. Signal-to-noise profiles also show a fluctuation, depending on the range from source to receiver. These characteristics of deep-water ambient noise are discussed. The results and discussion bear directly on future sonar systems as to optional placement of sensors throughout the water column.

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Mots clés AGROVOC

acoustics ambient noise deep water hydrophones mediterranean sea noise oceanographic data wind

Informations bibliographiques

D'autres materias

Superlow frequency; Acoustic detection and detectors; Noise analyzers; Ship noise; Ionian sea; Signal-to-noise ratio; Most project-2; *sonar; Extremely low frequency; Sound transmission; Oceanographic ships; Range(distance)

Langue

anglais

Licence

http://handle.dtic.mil/100.2/AD527037Approved for public release; distribution is unlimited.

Source

NAVAL RESEARCH LAB WASHINGTON DCDTIC

Auteur institutionnelle

NAVAL RESEARCH LAB WASHINGTON DC

Sur AGRIS depuis: 2013-06-15

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Ambient Noise and Signal-to-Noise Profiles in IOMEDEX

2006

Mots clés AGROVOC

Informations bibliographiques