Masker Level and Sinusoidal‐Signal Detection

1965 ◽  
Vol 37 (6) ◽  
pp. 1181-1181
Author(s):  
Richard A. Campbell
1967 ◽  
Vol 42 (5) ◽  
pp. 972-976 ◽  
Author(s):  
Richard A. Campbell ◽  
Elaine Z. Lasky

2008 ◽  
Vol 08 (02) ◽  
pp. L229-L235 ◽  
Author(s):  
LEI ZHANG ◽  
JUN HE ◽  
AIGUO SONG

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.


2013 ◽  
Vol 397-400 ◽  
pp. 2129-2133
Author(s):  
Feng Qin Cheng ◽  
Yao Wu Shi

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.


2013 ◽  
Vol 62 (18) ◽  
pp. 180502
Author(s):  
Fan Jian ◽  
Zhao Wen-Li ◽  
Wang Wan-Qiang

2002 ◽  
Vol 66 (10) ◽  
Author(s):  
Bruce Allen ◽  
Maria Alessandra Papa ◽  
Bernard F. Schutz

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