东南大学学报(英文版)2006,Vol.22Issue(1):31-34,4.
高斯混合噪声下非线性门限阵列中噪声改善信息的传输
Noise-improved information transmission in a nonlinear threshold array for Gaussian mixture noise
王友国 1吴乐南2
作者信息
- 1. 东南大学无线电工程系,南京,210096
- 2. 南京邮电大学数理学院,南京,210003
- 折叠
摘要
Abstract
To discuss further the dependence of stochastic resonance on signals, nonlinear systems and noise,especially on noise, the binary input signal buried in Gaussian mixture noise through a nonlinear threshold array is studied based on mutual information. It is obtained that Gaussian mixture noise can improve the information transmission through the array. Both stochastic resonance (SR) and suprathreshold stochastic resonance (SSR)can be observed in the single threshold system and in the threshold array. The parameters in noise distribution affect the occurrence of SR and SSR. The efficacy of information transmission can be significantly enhanced as the number of threshold devices in the array increases. These results show further the dependence of SR and SSR on the noise distribution, and also extend the applicability of SR and SSR in information transmission.关键词
随机谐振/超门限随机谐振/互信息/高斯混合噪声Key words
stochastic resonance/suprathreshold stochastic resonance/mutual information/Gaussian mixture noise分类
信息技术与安全科学引用本文复制引用
王友国,吴乐南..高斯混合噪声下非线性门限阵列中噪声改善信息的传输[J].东南大学学报(英文版),2006,22(1):31-34,4.