研究了接收信号为常规信号条件下，基于包络相关法的特定辐射源识别算法。对分选过的属于同一型号的不同个体雷达信号，先将观测信号进行消噪滤波，以提高信噪比，然后对处理后的观测信号进行包络提取，并计算其与标准模态包络的相关系数，在此基础上构造检验统计量，实现特定辐射源识别。计算机仿真实验表明：当被识别信号的互相关系数为0.99左右、信噪比为0 dB时，平均识别正确率达96％。

In this paper，correlation coefficient of envelope on specific emitter recognition is discussed when the received radar signal is a normal type. In this approach, in order to determine which specific radar generated the intercepted signals belong to the same kind after classified , received signals are firstly filtered by DFT to reduce the noise ,then the envelope of the processed signals are extracted. Computer simulation results show that the method is able to identify the two specific radar emitters with an accuracy rate of 96％ when the correlation is about 0.99, and the input SNR is 0 dB.

TN957