scholarly journals Study on the weak sinusoidal signal detection property using Duffing chaos system

2013 ◽  
Vol 62 (18) ◽  
pp. 180502
Author(s):  
Fan Jian ◽  
Zhao Wen-Li ◽  
Wang Wan-Qiang
Keyword(s):  
Signal Detection ◽  
Sinusoidal Signal ◽  
Detection Property ◽  
Chaos System

STOCHASTIC RESONANCE IN SATURATION NONLINEARITIES BASED ON SIGNAL DETECTION

2008 ◽  
Vol 08 (02) ◽  
pp. L229-L235 ◽  
Author(s):  
LEI ZHANG ◽  
JUN HE ◽  
AIGUO SONG
Keyword(s):  
Signal Detection ◽  
White Noise ◽  
Stochastic Resonance ◽  
Gaussian White Noise ◽  
Detection Performance ◽  
Sinusoidal Signal ◽  
Signal Noise ◽  
Noise Ratio

Recently, it was reported that some saturation nonlinearities could effectively act as noise-aided signal-noise-ratio amplifiers. In the letter we consider the signal detection performance of saturation nonlinearities driven by a sinusoidal signal buried in Gaussian white noise. It is showed that the signal detection statistics still undergo a nonmonotonic evolution as noise is raised. We also particularly show that an improvement of the SNR in terms of the first harmonic does not imply the possibility to improve the signal detection performance through stochastic resonance. The study might also complement other reports about stochastic resonance in saturation nonlinearities.

Random Phase Weak Sine Signal Detection Based on Autocorrelation and Chaos Theory

2013 ◽  
Vol 397-400 ◽  
pp. 2129-2133
Author(s):  
Feng Qin Cheng ◽  
Yao Wu Shi
Keyword(s):  
Signal Detection ◽  
Simulation Analysis ◽  
Random Phase ◽  
Sinusoidal Signal ◽  
Chaotic Oscillator ◽  
Detection Model ◽  
Chaos Detection ◽  
Detection Technology ◽  
Noise Threshold ◽  
Sine Signal

The paper expounds the basic principle of the weak signal detection on chaotic system at first , according to the actual situation that the signal phase is unknown Received in the communication and radar systems, a new chaos detection model is presented based on traditional chaos system, combined with autocorrelation detection technology , completed the random phase weak sinusoidal signal detection. The simulation analysis indicates that the proposed method succeeds in detecting Random Phase weak sinusoidal signal, and furthermore the signal-to-noise threshold is lower than either autocorrelation or chaotic oscillator.

scholarly journals Optimal strategies for sinusoidal signal detection

2002 ◽  
Vol 66 (10) ◽  
Author(s):  
Bruce Allen ◽  
Maria Alessandra Papa ◽  
Bernard F. Schutz
Keyword(s):  
Signal Detection ◽  
Optimal Strategies ◽  
Sinusoidal Signal
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