Mid-frequency acoustic propagation in shallow water on the New Jersey shelf. II. Intensity fluctuation | Zendy

Dajun Tang | Zendy; Frank S. Henyey | Zendy; Zhongkang Wang | Zendy; Kevin L. Williams | Zendy; Daniel Rouseff | Zendy; Peter H. Dahl | Zendy; Jorge E. Quijano | Zendy; Jee Woong Choi | Zendy

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Mid-frequency acoustic propagation in shallow water on the New Jersey shelf. II. Intensity fluctuation

Author(s) -

Dajun Tang,

Frank S. Henyey,

Zhongkang Wang,

Kevin L. Williams,

Daniel Rouseff,

Peter H. Dahl,

Jorge E. Quijano,

Jee Woong Choi

Publication year - 2008

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.2968295

Subject(s) - center frequency , intensity (physics) , acoustics , sound intensity , scintillation , bandwidth (computing) , exponential function , range (aeronautics) , frequency band , waves and shallow water , exponential distribution , physics , optics , materials science , sound (geography) , mathematics , statistics , telecommunications , mathematical analysis , band pass filter , detector , computer science , composite material , thermodynamics

The scintillation index and the intensity cumulative distribution function of mid-frequency (2-10 kHz) sound propagation are presented at ranges of 1-9 km in a shallow water channel. The fluctuations are due to water column sound speed variability. It is found that intensity is only correlated over a narrow frequency band (50-200 Hz) and the bandwidth is independent of center frequency and range. Furthermore, the intensity probability distribution peaks at zero for all frequencies, and follows an exponential distribution at small values.

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