周期分量采用累积周期图法识别。
The accumulative periodic diagram was used for the periodic element identification.
试用周期图法估计信号的功率谱；
The probationary period plan estimates the signal power spectrum;
使用周期图法对SBPV进行谱分析。
实验方法：周期图法、自相关法和协方差法。
Experimental Methods : Chart cycle, since the correlation and covariance method.
但以往互谱估计都是采用FFT方法和互周期图法。
But up to now there are only FFT and Cross-periodogram methods used in cross-spectral estimation.
用平均平滑周期图法分别估算出信号与噪声的功率谱密度函数。
The power spectrum of the noise and signal are estimated by the average smooth periodogram method.
与其它谱分析方法(如傅立叶谱和周期图法)比较，最大熵谱分析方法具有不受取样长度限制、对频谱分辨率较高等优点。
Compared with other spectra analysis, such as Fourier entropy and periodic picture, this method has many advantages such as no limit to sampling length and higher resolution to the spectra.
得到渐近无编、弱一致估计的苦干充分条件，它明显优于常用的周期图加窗估计法。
Under these conditions, the new method is obviously better than the cycle chart plus window estimate method in common use.
本文采用动态数据系统建模分析法与改进的周期图检验法相结合，对主轴回转精度进行混合谱分析。
This paper presents a method with mixed spectra for analyzing rotational accuracy of spindles, making use of the modified periodogram test combined with dynamic data system modeling.
鉴于脉象信号的周期特性，人们将频域分析法应用在脉图的研究上，利用脉谱图分析出了病人与正常人之间存在的显著差异。
As for the periodicity of pulse tracing signals, frequency domain analysis has been used to investigate pulse tracing graph and found the significantly difference between sick and normal persons.
利用光学周期平均法能够清晰地描绘带有噪声的周期性图象。
Noisy images with a periodic structure can be cleared by utilizing optical periodic average method.
利用光学周期平均法能够清晰地描绘带有噪声的周期性图象。
Noisy images with a periodic structure can be cleared by utilizing optical periodic average method.
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