TY - GEN
T1 - Modeling of 3D effects in shallow water sound propagation using PE approximation
AU - Qin, Jixing
AU - Katsnelson, Boris
AU - Luo, Wenyu
AU - Zhang, Renhe
PY - 2014
Y1 - 2014
N2 - Shallow water environment (shelf zone of the ocean) is often characterized by remarkable horizontal variations of parameters (bathymetry, sound speed profile, bottom properties etc.), initiating redistribution of the sound field in horizontal plane depending on mode number and frequency (the so called three dimensional or 3D effects). In this paper variations of waveguide parameters having different scales of variability in different directions are considered: coastal slope, nonlinear internal wave, which can be specified as horizontal stratification. Based on the approach of vertical modes and the parabolic equation (PE) in horizontal plane, 3D effects in propagation of sound signals in the presence of horizontal stratification are considered: variations of spectra of broadband signal, propagating from the source to receiver, interference between direct and reflected signals in multipath area of horizontal plane for different mode numbers and frequency, compression and decompression of signals.
AB - Shallow water environment (shelf zone of the ocean) is often characterized by remarkable horizontal variations of parameters (bathymetry, sound speed profile, bottom properties etc.), initiating redistribution of the sound field in horizontal plane depending on mode number and frequency (the so called three dimensional or 3D effects). In this paper variations of waveguide parameters having different scales of variability in different directions are considered: coastal slope, nonlinear internal wave, which can be specified as horizontal stratification. Based on the approach of vertical modes and the parabolic equation (PE) in horizontal plane, 3D effects in propagation of sound signals in the presence of horizontal stratification are considered: variations of spectra of broadband signal, propagating from the source to receiver, interference between direct and reflected signals in multipath area of horizontal plane for different mode numbers and frequency, compression and decompression of signals.
UR - http://www.scopus.com/inward/record.url?scp=84922653727&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84922653727
T3 - 21st International Congress on Sound and Vibration 2014, ICSV 2014
SP - 2151
EP - 2158
BT - 21st International Congress on Sound and Vibration 2014, ICSV 2014
PB - International Institute of Acoustics and Vibrations
T2 - 21st International Congress on Sound and Vibration 2014, ICSV 2014
Y2 - 13 July 2014 through 17 July 2014
ER -