The PSpice simulation and analysis of weak signal detection circuit based on stochastic resonance in Duffing system

Author

Chen Peng ; Cai Jinyan ; Du Minjie ; Zhu Sai

Author_Institution

Opt. & Electron. Eng. Dept., Mech. Eng. Coll., Shijiazhuang, China

fYear

2011

fDate

15-17 April 2011

Firstpage

1822

Lastpage

1825

Abstract

This paper revises the SNR theory approximate computational formula based on Duffing system with the system parameter of the first order differential term. The weak signal detection circuit based on stochastic resonance in Duffing system is simulated by PSpice software and from the simulation the relationships between SNR and some typical elements are discussed. The problem of operational amplifiers offset voltage accumulation in the circuit based on Duffing system is solved. The simulations confirm the feasibility of the weak signal detection circuit presented and especially verify the SNR improvement capacity.

Keywords

SPICE; differential equations; operational amplifiers; signal detection; Duffing system; PSpice simulation; SNR theory approximate computational formula; offset voltage accumulation; operational amplifier; stochastic resonance; weak signal detection circuit; Equations; Integrated circuit modeling; Mathematical model; Signal detection; Signal to noise ratio; Strontium; Duffing system; PSpice simulation; amplifying circuit; stochastic resonance; weak signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-8036-4

Type

conf

DOI

10.1109/ICEICE.2011.5778117

Filename

5778117