基于单脉冲相关积累的PSK信号相位编码调制规律分析

The Analysis of PSK Modulation Rules Based on the Coherent Integration of Single Pulse

文章首先研究了如何通过单脉冲相关积累从PSK信号中提取相位跳变规律,在此基础上给出了相位编码序列恢复方法。为了提高算法的性能,采用多重相关积累对算法进行了改进。根据文章中研究得到的算法进行了仿真实验,仿真结果显示,算法具有良好的低信噪比环境适应能力。

The problem of how to analyze PSK modulation rules is discussed in the paper. How to get the rules of phase-shifting from the coherent integration of single pulse is first introduced, on the basis of which an approach to restoring PSK sequence is derived. In the paper ,the method is improved by adopting multi-rank coherent integration of single pulse,so that it has good adaptability under Low-SNR condition, which is proved to be right according to some simulation results.