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
【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.
【关键词】 信息处理技术;
信号;
误比特率;
单稳态;
匹配滤波器;
相关性;
【Key words】 information technology; signal; bit error rate; single stable state; matched filter; correlation;
【Key words】 information technology; signal; bit error rate; single stable state; matched filter; correlation;
【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