电讯技术Issue(9)：1260-1264,5.DOI:10.3969/j.issn.1001-893x.2014.09.016
双模非高斯噪声背景下级联双稳态随机共振信号检测
Cascaded Bistable Stochastic Resonance Signal Detection under Dual-mode Non-Gaussian Noise Background
摘要
Abstract
In terms of the limitation of stochastic resonance( SR) in a Gaussian noise under non-Gaussian noise background,and in order to analyze the effect of dual-mode non-Gaussian noise on the cascaded bi-stable stochastic resonance( CBSR) with the validity of suppressing noise and verify the reliability of wave shaping of CBSR under the dual-mode non-Gaussian noise environment,weak signal detection of CBSR is proposed. In input signal detection,the probability density function is taken as a measure of stochastic reso-nance phenomenon,then,also the relationship between the non-Gaussian parameter,the correlation time and noise strength is analyzed when the stochastic resonance is kept in an optimal state. Finally,simulation confirms that the reliable region of noise strength and correction time of the second SR is not only expended with the decrease of non-Gaussian parameter, but also filter property and detection performance are im-proved obviously compared with the first level SR.关键词
级联随机共振/微弱信号检测/非高斯噪声/概率密度函数Key words
cascaded stochastic resonance/weak signal detection/non-Gaussian noise/probability density function分类
信息技术与安全科学引用本文复制引用
热依扎·海然,叶尔肯·加伦木汉,山拜·达拉拜..双模非高斯噪声背景下级联双稳态随机共振信号检测[J].电讯技术,2014,(9):1260-1264,5.基金项目
国家自然科学基金资助项目(60971130)Foundation Item:The National Natural Science Foundation of China(No.60971130) （60971130）
