通信侦察接收机中的解调实现

A Demodulation Scheme for the Reconnaissance Receiver

首先介绍了通信侦察接收机中解调器的特点。在此基础上提出了一种可以应用到侦察接收机中的解调器方案,并对符号同步环路和载波同步环路做了详细介绍,定时误差提取算法和载波误差提取算法采用非数据辅助的方法。最后,对解调器的误码率符号速率范围等性能参数进行了介绍,对侦察接收机中解调器的发展做了进一步的展望。

Firstly,the paper introduces the character of the demodulator in a reconnaissance receiver,and a scheme is presented. Secondly,detailed explanations on the timing synchronization and carrier synchronization are provided.Gardner algorithm is applied for timing error detector.Directed-decision algorithm is applied for phase error detector.They are both non-data-aided algorithm.finally,the performance and the development of the demodulator is discussed.