Title :
A statistical modelling of the Underwater Acoustic Channel
Author :
Benrhouma, Ons ; Houcke, Sebastien ; Bouallegue, Ammar
Author_Institution :
ENST Bretagne, Cesson-Sevigne
Abstract :
The underwater acoustic channel (UWA) is a frequency selective (presence of multi-path) and non stationary [1] [2] [4]. In order to develop several techniques adapted to the UWA channel, it is important to know the characteristics of this kind of channel propagation. In this paper, we suppose that the channel is stationary during the length of a block. Our goal consists in modelling the UWA channel based on analyzing real signals obtained by measuring apparatus and acquired from GESMA [8]. Our method of channel estimation is validated through known multipath channel. A statistical study of the estimated UWA channel such as the number of paths, the attenuation of the principal path and the delay between the principal and the secondary paths have been shown. The distribution law of these channel characteristics are presented.
Keywords :
channel estimation; multipath channels; statistical analysis; underwater acoustic communication; underwater acoustic propagation; GESMA; channel estimation; channel propagation; multipath channel; statistical modelling; underwater acoustic channel; Acoustic propagation; Channel estimation; Delay estimation; Frequency; Multipath channels; Polynomials; Sea measurements; Shift registers; Signal analysis; Underwater acoustics;
Conference_Titel :
Electronics, Circuits and Systems, 2005. ICECS 2005. 12th IEEE International Conference on
Conference_Location :
Gammarth
Print_ISBN :
978-9972-61-100-1
Electronic_ISBN :
978-9972-61-100-1
DOI :
10.1109/ICECS.2005.4633455
