基于时频分布图的通信信号分析方法探讨及应用

Discussion and Application of Analysis Method for Communication Signals Based on Time-Frequency Representation

对通信信号时频分析实现方法展开研究,着重对比分析两种时频分析方法的原理并进行了实例应用。实验结果显示,基于短时傅里叶变换(STFT)法与小波变换法的时频分布图清晰度均较好,在不同应用背景下具有各自的优越性。

The paper carries out research on the method for time-frequency analysis of communication signals, which comparatively analyzes the principle of two time-frequency analysis methods. The experimental result shows that time-frequency representation definition based on STFT and wavelet transform method have good effect, and exhibit respective advantages under different application background.