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

作　　者：倪蕾 熊静 蔡军 

机构地区：[1]61541部队,北京100094

出　　处：《信息工程大学学报》2017年第3期318-321,共4页Journal of Information Engineering University

摘　　要：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.

关 键 词：通信信号 时频分析 时频分布图 STFT 小波变换 

分 类 号：TN911.72[电子电信—通信与信息系统]