Title :
Resonating photoconductive microwave switches for reconfigurable antenna system
Author :
Xiong Gang ; Lii Ming ; Bin, Tang
Author_Institution :
Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
Based on chaos theory, this paper provides a new method for detection of direct sequence spread spectrum (DSSS) signal. According to the analysis of intermittent chaos, chaotic oscillators array is used in the method. In addition, the system of Duffing chaotic oscillators array is constructed for blind detection in very low signal-to-noise ratio (SNR). Computer simulations prove that the new method is effective. And in comparison with many previous methods such as the method based on wavelet decomposition, the DSSS signal can be detected successfully at a lower detection-threshold by this method, which enhances the performance.
Keywords :
array signal processing; blind source separation; chaotic communication; oscillators; signal detection; spread spectrum communication; DSSS signal detection; Duffing chaotic oscillator array; blind detection; direct sequence spread spectrum; intermittent chaos; signal-to-noise ratio; Chaos; Chaotic communication; Cities and towns; Frequency; Nonlinear equations; Oscillators; Signal detection; Signal processing; Signal to noise ratio; Spread spectrum communication;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.4348154
