Time-Frequency Analysis Method: Research and Prospect

Abstract

时频分析联合时间频率表示一维时间信号，是非稳态信号处理的重要工具之一。本文综述了时频分析方法的研究进展，在此基础上阐述了各种时频分析方法的原理及其优缺点。通过数值模拟试验，比较了各种时频分析方法的频谱表示特征。最后，对时频分析方法进行了展望。 Time-frequency analysis method represents one-dimensional time signal into time and frequency domains, which is an important tool for non-stationary signal analysis. In this paper, the time-frequency analysis methods were reviewed; furthermore, a survey of the principles, the ad-vantages and disadvantages of various time-frequency methods were given. Numerical simulations were carried out for comparisons. Finally, a short prospection about time-frequency analysis was given in this paper.