nonstationary signal analysis 非平稳信号分析
nonstationary signal processing 非平稳信号处理
nonstationary signal measurement 非平稳信号检测
nonlinear and nonstationary signal 非线性非平稳信号
civil engineering nonstationary signal 非平稳信号
nonstationary random signal [通信] 非平稳随机信号
nonstationary EEG signal 非平稳脑电信号
nonstationary random vibration signal 非平稳随机振动信号
Time-frequence methods on nonstationary signal are reviewed.
回顾了非平稳信号的时频分析方法。
参考来源 - 齿轮箱轴承故障诊断的时频分析方法初步探讨So it becomes the fastest developed signal analysis method in time-frequency analysis and successfully applied in large-scale mechanical fault diagnose. It provide a effective way for nonstationary signal processing, signal filtering, signal-noise separating and feature extracting.
在大型机械故障诊断领域,其应用成果非常显著,为非平稳信号分析、信号滤波、信噪分离和特征提取提供了有效途径。
参考来源 - 适于轴承故障诊断模型与降噪方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Reversed order method is used to prove that the noise of driver axle is a nonstationary signal.
利用逆序法对驱动桥噪声信号的平稳性进行了验证，指出其噪声信号为非稳态信号。
Frequency-Hopping signal is a typical nonstationary signal and must adopt nonstationary signal processing methods.
跳频信号是典型的非平稳信号，必须采用非平稳信号处理方法。
Heart sound is a highly nonstationary signal, and the Short-time Fourier Transformation (STFT) is an effective method for this kind of signal to be analysed.
心音信号是一种典型的非平稳信号，短时傅立叶变换(STFT，又称窗口傅立叶变换)是用于对非平稳信号进行时频分析的有效工具。
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