Title :
Detection of weak pulse signal via stochastic resonance
Author :
Wang, Mingyang ; Zhou, Yiyu ; Han, Le ; Jiang, Wenli
Author_Institution :
Nat. Univ. of Defense Technol., Changsha
Abstract :
A novel nonlinear detector is proposed using a bistable stochastic resonance system which is constructed by langevin equation. The performance of the detector is analyzed, and the probability of detection (PD), the probability of false alarm (PFA) are deduced by the probability density function (p.d.f) of Fokker-Planck equation. We compared the performance of the proposed detector with that of matched filter detector (MFD), and showed the superiority of the proposed detector over MFD under low signal to noise ratio (SNR) (below-10dB)
Keywords :
resonance; signal detection; stochastic processes; Fokker-Planck equation; PD; PFA; bistable stochastic resonance; langevin equation; nonlinear detector; probability density function; probability of detection; probability of false alarm; weak pulse signal detection; Detectors; Gaussian noise; Matched filters; Network address translation; Nonlinear equations; Probability density function; Signal to noise ratio; Stochastic resonance; Strontium; Superconducting device noise; MFD; stochastic resonance; weak pulse signal;
Conference_Titel :
Radar, 2006. CIE '06. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-9582-4
Electronic_ISBN :
0-7803-9583-2
DOI :
10.1109/ICR.2006.343497
