EW中低信噪比超宽带LFM信号实时检测方法

The real-time detection method for ultra-wideband LFM signals

超宽带信号的检测及实时处理是电子战(EW)系统工程实现的一个关键问题。本文分析了线性调频信号短时傅里叶变换(STFT)的得益及其工程实现方法,在此基础上提出了一种对超宽带低信噪比LFM信号实时检测、识别的工程实现方法。本文提出的方法已在工程中应用。

The detection and real - time processing of uhra-wideband （UWB） signals are one of the crucial problems in EW system. The profit and engineering implementation of STFT for LFM signals are analyzed, on the basis of which a method for real-timely detecting and recognizing UWB LFM signals with low SNR is presented with engineering applications.