摘要
信号调制方式识别技术是盲信号处理的关键技术之一,文中在研究MPSK信号的常用分类识别方法的基础上,针对其识别特征易受到噪声以及载波频率估计误差影响的不足,提出一种改进的分类识别方法并对其分类识别性能进行了实验仿真,通过仿真结果的分析可知该方法能够获得较高的正确识别率,具有一定的实际应用价值。
The modulation classification technology is one of the key technologies in the area of blind signal process- ing. Based on the research of the normal modulation classification method of MPSK, an advanced modulation classification method is proposed to solve the problem of the recognition feature which can be easily influenced by multi - path effect and carrier wave frequency estimating error. The performance of the method is experiment simulated in this paper. The analysis shows that the improved method has a higher accurate identification rate and a certain practical use.
出处
《电声技术》
2013年第2期74-76,83,共4页
Audio Engineering
关键词
盲信号
调制识别
初始相位
识别率
blind signal
modulation classification
initial phase
identification rate
