TY - GEN
T1 - A high-resolution weak signal detection method based on stochastic resonance and superhet technology
AU - Shi, Shuo
AU - Yin, Wanyi
AU - Yang, Mingchuan
AU - He, Mingjie
PY - 2012
Y1 - 2012
N2 - A detection method based on the strong low-frequency weak-signal detection ability of stochastic resonance is proposed, aimed at the detection of the unknown weak signal. By mixing the unknown signal with a continuous linear changing local oscillator signal, a difference frequency signal will be generated, which will be sent to the stochastic resonance system. Thus, an obviously changed output can be obtained. Because the stochastic resonance system is extremely sensitive to low frequency, the system will have a maximum output when the local oscillator and frequency of the unknown signal are closest. The frequency of the unknown signal will be measured precisely from the local oscillator frequency and the difference frequency. It can be inferred from the theoretical analysis and numerical simulation that this method has a large detection range, high resolution, and good prospect.
AB - A detection method based on the strong low-frequency weak-signal detection ability of stochastic resonance is proposed, aimed at the detection of the unknown weak signal. By mixing the unknown signal with a continuous linear changing local oscillator signal, a difference frequency signal will be generated, which will be sent to the stochastic resonance system. Thus, an obviously changed output can be obtained. Because the stochastic resonance system is extremely sensitive to low frequency, the system will have a maximum output when the local oscillator and frequency of the unknown signal are closest. The frequency of the unknown signal will be measured precisely from the local oscillator frequency and the difference frequency. It can be inferred from the theoretical analysis and numerical simulation that this method has a large detection range, high resolution, and good prospect.
KW - stochastic resonance
KW - superhet technology
KW - weak signals
UR - https://www.scopus.com/pages/publications/84874282629
U2 - 10.1109/ChinaCom.2012.6417501
DO - 10.1109/ChinaCom.2012.6417501
M3 - 会议稿件
AN - SCOPUS:84874282629
SN - 9781467326995
T3 - 2012 7th International ICST Conference on Communications and Networking in China, CHINACOM 2012 - Proceedings
SP - 329
EP - 333
BT - 2012 7th International ICST Conference on Communications and Networking in China, CHINACOM 2012 - Proceedings
T2 - 2012 7th International ICST Conference on Communications and Networking in China, CHINACOM 2012
Y2 - 7 August 2012 through 10 August 2012
ER -