The cyclic autocorrelation function for PSK signals is derived,a cyclic autocorrelation based statistic is established,and by employing such a statistic a new blind parameter estimation method for PSK signals is proposed.

• 推导了PSK信号的循环自相关函数；建立了一个基于循环自相关函数的统计量；提出了一种在没有先验信息的情况下；利用该统计量对PSK信号的载频和码速率两个参数进行盲估计的新方法.