TY - GEN
T1 - Underwater acoustic channel modeling in stratified ocean using an improved algorithm of eigen-rays
AU - Ma, Shasha
AU - Wang, Haiyan
AU - Shen, Xiaohong
AU - Jiang, Zhe
AU - Liu, Yi
AU - Hu, Yuanzheng
PY - 2010
Y1 - 2010
N2 - This paper is concerned with modeling the time-varying UWA channel in Stratified Ocean. The time-varing multipath characteristic of underwater channel imposes strong limitations on acoustic communication transmission. To analyze the characteristic of underwater acoustic channel, a method is proposed based on Rayleigh distribution. Eigen-rays are searched on the basis of the ray theory, that is, eigen-rays are described as a combination of the span model, which is presented here as an efficient and improved algorithm for searching eigen-rays. Compared with other algorithms, this methods can effectively reduce the possibility of missing rays. It then exploits the eigen-ray information of ray tracing to determine the discrete signal transmission paths and add them to random diffusive multi-paths whose amplitude and phase are modeled by Rayleigh and uniform distribution respectively. The result reveals that this method, which is an efficient way to precisely estimate the multipath channel, especially for long distance propagation, has a promising value for engineering application.
AB - This paper is concerned with modeling the time-varying UWA channel in Stratified Ocean. The time-varing multipath characteristic of underwater channel imposes strong limitations on acoustic communication transmission. To analyze the characteristic of underwater acoustic channel, a method is proposed based on Rayleigh distribution. Eigen-rays are searched on the basis of the ray theory, that is, eigen-rays are described as a combination of the span model, which is presented here as an efficient and improved algorithm for searching eigen-rays. Compared with other algorithms, this methods can effectively reduce the possibility of missing rays. It then exploits the eigen-ray information of ray tracing to determine the discrete signal transmission paths and add them to random diffusive multi-paths whose amplitude and phase are modeled by Rayleigh and uniform distribution respectively. The result reveals that this method, which is an efficient way to precisely estimate the multipath channel, especially for long distance propagation, has a promising value for engineering application.
KW - Channel models
KW - Eigen-rays
KW - Rayleigh distribution
KW - Stratified Ocean
UR - https://www.scopus.com/pages/publications/78650020084
U2 - 10.1109/CMCE.2010.5609845
DO - 10.1109/CMCE.2010.5609845
M3 - 会议稿件
AN - SCOPUS:78650020084
SN - 9781424479566
T3 - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
SP - 288
EP - 291
BT - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
T2 - 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010
Y2 - 24 August 2010 through 26 August 2010
ER -