DocumentCode :
546012
Title :
Dynamical evolution of Brillouin precursors in multilayered sea water-based media
Author :
Alejos, Ana V. ; Dawood, M. ; Sun, J.X.
Author_Institution :
E.T.S.E.Telecomun., Univ. of Vigo, Vigo, Spain
fYear :
2011
fDate :
11-15 April 2011
Firstpage :
1357
Lastpage :
1361
Abstract :
In this contribution we introduce an approach to analyze the formation of Brillouin precursor in a signal propagated through a dispersive multilayered medium formed by sea-water and sea-ice. We theoretically predict the evolution and formation of the Brillouin precursor for one classical pulse used: the rectangular one. The design of a ramp pulse based waveform is proposed as near-optimal signal in terms of an improved peak amplitude decay level offered after travelling the multilayer scenario. The analysis herein offered results of interest in underwater applications, such as sensing, natural resources detection or communications.
Keywords :
acoustic signal processing; dispersive media; sea ice; seawater; Brillouin precursors; dispersive multilayered medium; multilayered seawater-based media; near-optimal signal; ramp pulse based waveform; sea-ice; Dielectrics; Dispersion; Media; Permittivity; Scattering; Sea ice;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
Type :
conf
Filename :
5781761
Link To Document :
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