Title :
A model/data comparison for shallow-water reverberation
Author :
Li, Fenghua ; Liu, Jianjun ; Zhang, Renhe
Author_Institution :
Nat. Lab. of Acoust., Chinese Acad. of Sci., Beijing, China
Abstract :
A bottom-scattering model based on sediment small scatterers, single scattering approximation is presented, which is combined with a normal-mode-based reverberation model. The combined model (for total reverberation) is compared with measurements of shallow-water reverberation from the 2001 Asian Sea International Acoustic Experiment (ASIAEX) in the East China Sea. Reverberation intensities as a function of time and frequency are compared with theoretical predictions with reasonable agreement. The effects of the rough sea surface on the reverberation are also discussed.
Keywords :
acoustic wave scattering; approximation theory; oceanographic regions; reverberation; sediments; time-frequency analysis; underwater sound; 2001 Asian Sea International Acoustic Experiment; East China Sea; bottom-scattering model; data comparison; model comparison; normal-mode-based reverberation model; reverberation intensity; rough sea surface; sediment small scatterer; shallow-water reverberation; single scattering approximation; Acoustic measurements; Acoustic scattering; Frequency; Predictive models; Reverberation; Rough surfaces; Sea measurements; Sea surface; Sediments; Surface roughness;
Journal_Title :
Oceanic Engineering, IEEE Journal of
DOI :
10.1109/JOE.2004.834181
