本文提出了一种相互垂直的动态信号分析的新方法——通频全息谱。
This paper puts forward a new way of analyzing mutual vertical dynamic signal - pass holospectrum.
并阐述了利用MAT - LAB软件绘制二维全息谱图和三维全息谱图的方法。
Method of two and Three dimensional holo spectrum plotted by MATLAB software is set forth.
对全息谱技术在回转机械故障诊断、起停车分析以及非稳态信息处理中的应用进行了全面的回顾和总结。
A detailed overview of its applications to fault diagnosis, condition monitoring in run - up and shutdown stages as well as non - stationary vibration is presented.
然而,精确地求解相位、幅值及频率是作全息谱的基础和前提,基于传统DFT方法是不能得到精确的值。
However, the accuracy of phase, amplitude and frequency are basis of the holospectrum. The values are inaccuracy through the traditional DFT.
仿真及对柔性转子试验台振动信号的分析结果表明,基于频谱细化和相位差校正的全息谱能有效提高其分析精度,更加精确有效地诊断旋转机械的故障。
With correction of phase difference for the max peak, the amplitude and phase of each order frequency can be acquired. At last, the holospectrum was synthesized.
报道一种利用象差校正平场全息凹面衍射光栅作为分光和成象元件的平场多色仪,该多色仪具有谱面平直、使用波段宽、集光本领强、体积小等优点。
In this paper, the flat field polychromator (SPD - I) using an aberration - corrected flat fie1d holographic concave diffraction grating as both spectroscopic and oPtical imaging element is re-POrted.
将输入图像置于这种全息透镜的前面或后面,均能得到物体的傅里叶变换功率谱。
The Fourier transform power spectrum of input object can be obtained when the input image is placed at the front or back of the hololens.
将输入图像置于这种全息透镜的前面或后面,均能得到物体的傅里叶变换功率谱。
The Fourier transform power spectrum of input object can be obtained when the input image is placed at the front or back of the hololens.
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