节点文献

单稳态系统应用于加性高斯白噪声信号检测

Signal detection in AGWN by using single stable state system

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 徐寒松

【Author】 Xu Han-song(College of Mechanical and Energy Engineering,Zhejiang University,Hangzhou 310027,China)

【机构】 浙江大学机械能源学院 杭州310027

【摘要】 在加性高斯白噪声信号检测中,在采样周期极小或接近理想的情况下,连有匹配滤波器的检测电路是最佳的。如果匹配滤波器的采样周期没有达到理想情况,则在它之前连一个双稳势的非线性系统,然后选择合适的参数使此系统始终处于单稳态,再对二进制或多进制码元信号进行检测,即使采样周期变化程度较大,检测性能也会得到显著的改善。另外还导出了单稳态系统性能的理论公式。

【Abstract】 When sampling period is very low or close to ideal case for signal detection in additive Gaussian white noise(AGWN),the detection circuit with matched filter is optimal.Otherwise,a bi-stable nonlinear system can be connected to the matched filter,and by adjusting the system parameters,the system will keep in single state for the detection of binary or multi-nary code,so that the detection performance can be remarkably improved in a wide range of sampling period.In addition,a theoretical formula of the system performance was derived.

【基金】 国家自然科学基金资助项目(60272035)
  • 【文献出处】 吉林大学学报(工学版) ,Journal of Jilin University Engineering and Technology Edition , 编辑部邮箱 ,2007年01期
  • 【分类号】TN911.23
  • 【被引频次】10
  • 【下载频次】267
节点文献中: