基于S变换的无线电引信信号分析

为了更好地揭示无线电引信的信号特征,文中引进S变换对信号进行时频分析,并通过对典型的跳频信号、连续波多普勒信号进行时间、频率等特征参数的仿真分析,结果表明相比于短时Fourier变换和小波变换,S变换在时域、频域和能量域都能精细地揭示信号的特征,为无线电引信信号分析提供了一个良好的时频分析手段,也为引信采取最优的信号处理方法提供依据.

Analysis of Radio Fuze Signal Based on S Transform

In order to reveal signal features of radio fuze,S transform is applied in analyzing the time-frequency of signals.A simulation analysis is made of such characteristic parameters as time and frequency of the typical frequency hopping signal and continuous wave Doppler signal.The results indicate that ST can better reveal signal features on time domain,frequency domain and energy domain than Short Time Fourier Transform and Wavelet Transform do.The research result provides not only a good method for analyzing time-frequency of radio fuze signals,but also an evidence for taking an optimal method for signal processing of fuze.