Title :
Carrier Detection Method of Binary-Phase-Shift-Keyed and Direct-Sequence-Spread-Spectrum Signals Based on Duffing Oscillator
Author :
Jin, Hu ; Wang, Keren
Author_Institution :
Dept. of Inf. Eng., Hefei Electron. Eng. Inst.
Abstract :
In this paper, carrier detection scheme of binary-phase-shift-keyed and direct-sequence-spread-spectrum (DSSS/BPSK) signals based on Duffing chaotic oscillator is presented. Technique of Duffing oscillator weak signal detection is introduced first. Then by making use of Duffing oscillator´s sensibility to small periodic signals and immunity against noise, the sine signal is detected which derives from square transform of DSSS/BPSK signal and is submerged in strong noise. The results of simulation show that DSSS/BPSK signal at SNR=-38.35 dB can be detected by the presented method here
Keywords :
chaotic communication; oscillators; phase shift keying; signal detection; spread spectrum communication; DSSS-BPSK signal; Duffing chaotic oscillator; binary-phase-shift-keying; carrier detection method; direct-sequence-spread-spectrum; Adaptive signal detection; Binary phase shift keying; Chaotic communication; Detectors; Frequency; Mobile communication; Nonlinear equations; Oscillators; Signal detection; Spread spectrum communication;
Conference_Titel :
ITS Telecommunications Proceedings, 2006 6th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-9587-5
Electronic_ISBN :
0-7803-9587-5
DOI :
10.1109/ITST.2006.288895
