Mid-frequency acoustic propagation in shallow water on the New Jersey shelf. II. Intensity fluctuation.
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.
Tang
Dajun
D
Henyey
Frank S
FS
Wang
Zhongkang
Z
Williams
Kevin L
KL
Rouseff
Daniel
D
Dahl
Peter H
PH
Quijano
Jorge
J
Choi
Jee Woong
JW
D000162:Acoustics; D001267:Atlantic Ocean; D019015:Geologic Sediments; D008962:Models, Theoretical; D009038:Motion; D009515:New Jersey; D011825:Radar; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors