基于短时傅立叶和小波变换的时频分析

Time-frequency Analysis Methods Based on Short-Time Fourier Transform and Wavelet Transform

介绍了短时傅立叶变换和小波变换两种时频分析方法,通过对仿真信号的分析,阐述了两种方法在分析非平稳信号时的优势和优缺点。

This paper introduces two methods of time-frequency analysis including short-time Fourier transform and wavelet transform. And this paper introduced the advantages of those methods in analyzing non-stationary signals and explains the merits and defects of those methods by analyzing the simulation signals.