低信噪比下雷达信号调制类型的自动识别

Modulation Manner of Radar Signals′s Auto-Recognition Based on the Condition of Low Signal Noise Ratio

低信噪比下识别雷达辐射源信号的调制类型是电子战系统的关键技术之一。深入分析了小波去噪和小波变换法的基本原理,提出一种在低信噪比下基于小波变换法自动判别信号调制类型的新方法。仿真结果表明,在较低信噪比条件下,该方法能准确识别给定信号的调制类型。

Recognize the modulation manner of radar emitter signals in the condition of low signal noise ratio is the key technology of the electronic warfare systems.Through analyse the basic principle of the wavelet de-noise and wavelet transform,new method of auto-recognition of the modulation manner of radar signals based on wavelet transform in the condition of low signal noise ratio is put forward.The computer-aided experiment show that this method can exactly recognize the given modulation manner of radar signa...