| 应用随机共振进行海洋噪声背景下的信号检测 |
| |
| 引用本文： | 李华锋,鲍荣浩,徐博候. 应用随机共振进行海洋噪声背景下的信号检测[J]. 浙江大学学报(工学版), 2004, 38(5): 640-643 |
| |
| 作者姓名： | 李华锋 鲍荣浩 徐博候 |
| |
| 作者单位： | 浙江大学力学系，浙江大学力学系，浙江大学力学系 浙江杭州310027，浙江杭州310027，浙江杭州310027 |
| |
| 基金项目： | 国家自然科学基金，浙江省自然科学基金 |
| |
| 摘 要： | 通过对海洋噪声特性的研究,将其理想化为一个Lorentz色噪声和若干拟周期干扰成分的混合,继而基于参数调节随机共振理论的结果对系统参数进行优化,对系统输出应用后处理方法,形成一套完整的信号处理方法.数值仿真表明,随机共振处理结果优于低通滤波器的处理结果,随机共振系统处理宽带随机干扰情况有优势.
|
| 关 键 词： | 随机共振 信号检测 海洋噪声 模拟信号 |
| 文章编号： | 1008-973X(2004)05-0640-04 |
| 修稿时间： | 2003-05-13 |
Signal detection via stochastic resonance under background of sea noise |
| |
| LI Hua-feng,BAO Rong-hao,XU Bo-hou. Signal detection via stochastic resonance under background of sea noise[J]. Journal of Zhejiang University(Engineering Science), 2004, 38(5): 640-643 |
| |
| Authors: | LI Hua-feng BAO Rong-hao XU Bo-hou |
| |
| Abstract: | Study of the characteristics of sea noise showed that it is approximately a combination of Lorentzian colored noise and some quasi-harmonic components.The theoretical results of parameter-tun-ing stochastic resonance(SR)were used to optimize the system,and post treatments were used on the sys-tem output.The simulation example showed that the result of SR was better than that of a lowpass filter. SR is valuable in signal detection because it can reduce all frequency components of noise in a broad band. |
| |
| Keywords: | stochastic resonance signal detection sea noise analog signal |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
