Title :
A Chaotic Direct Sequence Spread Spectrum Communication System in Shallow Water
Author :
Lei, Lihua ; Xu, Feng ; Yajun Xu ; Wu, Yijun
Author_Institution :
Image Sonar Lab., Chinese Acad. of Sci., Beijing, China
Abstract :
In order to achieve Low Probability of Intercept (LPI) in hostile environments and increase robustness when the transmitted signal is distorted by multipath propagation, Spread Spectrum (SS) methods are often employed. In this paper, a Direct Sequence Spread Spectrum (DSSS) communication system using chaotic spreading sequences is designed for low bit rate covert underwater digital communication at poor propagation conditions usually encountered in shallow water. System design is described in detail and trail results are provided to show the performance.
Keywords :
chaotic communication; code division multiple access; error statistics; multipath channels; spread spectrum communication; chaotic direct sequence spread spectrum communication; chaotic spreading sequences; hostile environments; low bit rate; low intercept probability; multipath propagation; shallow water; transmitted signal; underwater digital communication; Chaotic communication; Doppler effect; Logistics; Receivers; Spread spectrum communication; Transmitters;
Conference_Titel :
Control, Automation and Systems Engineering (CASE), 2011 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4577-0859-6
DOI :
10.1109/ICCASE.2011.5997600
