基于连续小波变换的脉内调制类型识别技术

In pulse modulation identification technique based on CWT

脉内调制类型识别是雷达侦察的关键技术之一,特别是低信噪比下的脉内调制识别技术是当前研究的热点。利用基于连续小波变换的瞬时频率提取技术,可以在低信噪比条件下获得不同调制类型信号的瞬时频率特征,从而实现低信噪比下的脉内调制类型识别,仿真结果表明采用这种方法可以有效地实现低信噪比下的瞬时频率提取。

In pulse modulation identification is one of radar reconnaissance key technology. Especially, in pulse modulation identification under low SNR is a hot point of recent researching. The instant frequency characters of various modulations can be got through instant frequency abstracting technology by CWT under low SNR,and in pulse modulation can be realized. Simulation results prove that instant frequency abstracting can be efficiently realized by these methods under low SNR.