为了实现脉压雷达信号的调制类型识别,提出了一种由粗到细的调制类型识别方法。它首先将信号粗分成PSK信号和调频信号两大类,然后使用时域累加瞬时自相关法实现了PSK信号的类内细分,采用一次瞬时自相关实现了调频信号的类内细分。仿真实验表明,该方法简单有效,具有优良的识别性能和很高的工程应用价值。

For the recognition of modulation types of pulse compression radar signals, in this paper, a gradually detailed recognition method was proposed. Firstly, the rough recognition was carried out to differentiate PSK signals and FM signals; Then the detailed classification for PSK signals was realized by the method of instantaneous autocorrelation with time domain addition; Finally, the detailed classification for FM signals was realized with the method of one-off instantaneous autocorrelation. Some experiments prove that the method is easy for computation and valid for performance, which is very valuable in engineering application.