In this paper, two kinds of new time-frequency analysis approaches for non-stationary signal processing are introduced, which are wavelet transform and short-time Fourier transform.
本文介绍处理非平稳信号的新型工具——小波分析、短时付氏变换两种时频分析方法。
In the area of signal processing, many signals we encounter are non-stationary, such as radar signals, seismic waves and sonar signals etc.
在信号处理领域中遇到的许多信号都是非平稳信号，如通信信号、某些雷达信号、地震波、声纳等。
Order analysis plays an important role in non-stationary vibration signal processing in rotating machinery.
旋转机械非稳定信号阶比分析技术，是旋转机械特征分析的重要内容。
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