基于能量算子的单通道盲分离中源信号数目估计算法  

Source Number Estimation Algorithm in Single Channel Blind Source Separation Using Energy Operators

作　　者：栾海妍[1] 宋连萍[1] 江桦[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002

出　　处：《信息工程大学学报》2011年第3期295-301,共7页Journal of Information Engineering University

基　　金：国家863计划资助项目(2009AA011205)

摘　　要：分析了利用Teager能量算子检测信号奇异点的原理,给出了数字调制混合信号能量函数幅度的表达式,重点研究了加性高斯白噪声对混合信号能量函数的影响,提出一种基于能量算子的单通道盲分离中源信号数目估计算法。仿真结果验证了算法的有效性。In this paper, the principle of singular point detection using Teager energy operators is analyzed, and the amplitude expression of the energy function of the digitally modulated mixture is derived, and the effect of the additive Gaussian noise is analyzed. A new single channel source num- ber estimation algorithm is proposed based on the energy operators without any prior knowledge. The simulation result shows the efficiency of this algorithm.

关 键 词：单通道盲分离 数字调制混合信号 源数目估计 能量算子 

分 类 号：TN911.7[电子电信—通信与信息系统]