Based on the analysis of the inherent characteristic of the signal, an algorithm that called the modification of the vibration parameter transform based on frequency domain integration is introduced.
在分析了振动信号固有特性的基础上，提出了一种基于频域积分的振动参量转换波形修正算法。
Here, secondary treatment methods are introduced in detail, include time domain signal statistics character, frequency analysis fast Fourier transform (FFT), and short time Fourier transform (STFT).
这里，主要对二次处理的方法作了详细的介绍，包括时域信号的统计特征，频域分析的傅立叶变换和短时傅立叶变换。
Order analysis based on FFT is a transform between time-domain signal and frequency-domain signal and furthermore, it is the most important vibration analysis of rotational machinery.
阶次分析是基于FFT的一种时频转换谱分析，它是变速旋转机械体振动分析的最重要的一种方法。
The laplace-transform method is only applicable to the frequency domain analysis for linear circuits.
拉普拉斯变换法只适用于线性电路的频域分析。
The frequency-domain analysis is accomplished by fast-Fourier transform analysis(FFTA)procedures and tested with a computergenerated mathematical model.
频域分析借助于快速富里叶变换分析（FFTA）过程，并用由计算机生成的数学模型进行测试。
The frequency-domain analysis is accomplished by fast-Fourier transform analysis(FFTA)procedures and tested with a computergenerated mathematical model.
频域分析借助于快速富里叶变换分析（FFTA）过程，并用由计算机生成的数学模型进行测试。
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