Journal of Applied Sciences ›› 2009, Vol. 27 ›› Issue (2): 111-116.
• Communication Engineering • Next Articles
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Abstract:
Chaotic DS signal is a kind of spread spectrum signal that has the merits of both chaotic and directsequence spread spectrum (DSSS) signals. In order to realize blind detection of chaotic DSSS signal, both conventional DSSS signal methods and chaotic signal detection methods are investigated. A novel method is introduced in which the C-C method is used to determine key parameters. The largest Lyapunov exponent of time series is then calculated using small data sets. Simulation results verify feasibility of this method under different conditions such as Gaussian noise and multi-path channel.
Key words: chaotic DS signal, Lyapunov exponent, C-C method, small data set
CLC Number:
TN914，TN975
XU Wei, GUO Jing-bo. Detection of Chaotic Direct Sequence Spread Spectrum Signal Based on the Largest Lyapunov Exponent[J]. Journal of Applied Sciences, 2009, 27(2): 111-116.
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https://www.jas.shu.edu.cn/EN/Y2009/V27/I2/111
