摘要
相关函数可以描述信号本身前后或两信号之间的联系紧密性。介绍了相关运算在信号处理中的一些应用,给出了相关检测以及基于相关运算的码速率估计的原理。理论分析和仿真实验表明,利用解析域的相关运算能够有效地检测出随机信号中的周期分量,并且基于相关运算的PSK和FSK信号的码速率估计性能较好。
The correlation function describes the fore-and-aft relation of one signal and the relation between two signals. This paper introduces some applications of correlation operation in signal processing. The theories of correlation detection and symbol rate estimation based on correlation operation are described. The results of theoretical analysis and simulation show that the cyclic part of random signals can be detected effectively by correlation detection in analytic domain,and the symbol rate estimation of PSK and FSK signals based on correlation operation has good performance.
出处
《无线电工程》
2014年第9期67-69,80,共4页
Radio Engineering
基金
南海公益性行业科研专项基金资助项目(2013418028)
关键词
相关运算
信号检测
码速率
信号处理
correlation operation
signal detection
symbol rate
signal processing
