Title :
The range-averaged intensity model: a tool for underwater acoustic field analysis
Author_Institution :
Dept. DITI-ICA, Ifremer-Centre de Brest, Plouzane, France
fDate :
1/1/1992 12:00:00 AM
Abstract :
The range-averaged intensity model (RAIM) long known as a powerful method for transmission loss estimation in waveguides, is extended to other aspects of the acoustic field: impulse response and angular pattern estimations at a receiver, general time spreading in a waveguide, signal fluctuations, reverberation levels, and ambient noise structure. An example of its application to a SOFAR propagation and detection case is presented. This method appears to be a very efficient and reliable analysis tool for many underwater acoustics configurations: particularly long-range horizontal telemetry and shallow-water sonar
Keywords :
acoustic field; acoustic noise; acoustic wave propagation; acoustic waveguides; reverberation; sonar; underwater sound; RAIM; SOFAR detection; SOFAR propagation; ambient noise structure; angular pattern estimations; impulse response; long-range horizontal telemetry; range-averaged intensity model; reverberation levels; shallow-water sonar; signal fluctuations; time spreading; transmission loss estimation; underwater acoustic field analysis; waveguide theory; Acoustic noise; Acoustic propagation; Acoustic signal detection; Acoustic waveguides; Acoustic waves; Fluctuations; Noise level; Propagation losses; Reverberation; Underwater acoustics;
Journal_Title :
Oceanic Engineering, IEEE Journal of
