英语释义

1. a curve exhibiting graphically the periodicity of any natural or physical phenomenon

片语

Periodogram Method周期图法

cyclic periodogram循环周期图

periodogram algorithm平均周期图法

periodogram analysis[数]

averaged periodogram平均周期图

periodogram methods周期图方法

Periodogram predictor周期图预测

The Periodogram周期图

tapering periodogram加窗周期图

英汉例句

• the major periods in first four principal components series are also revealed by using the periodogram and the maximum entropy method.

  在这四个主成分序列中的决定性周期用周期图和最大熵方法加以揭露。

• in this paper, power spectrum of cap (carotid pulse) by periodogram and ar model is given, respectively.

  采用周期图法和ar参数模型法分别对颈动脉搏动波进行了功率谱分析。

• this algorithm applies periodogram and parabolic interpolation to the cross correlation spectrum of band limited stochastic signals, and can obtain a continuous time delay estimator.

  该方法将周期图法与抛物线插值应用于带限随机信号的互相关谱，可以获得连续的延时估计。

• the power spectral density of gearbox vibration signals is estimated by the periodogram from which original feature sets are derived.

  为解决该问题，提出了利用频域特征和遗传编程对齿轮箱盖多类状态振动信号进行特征提取的方法。

• in this paper, a new algorithm of computing notch periodogram is proposed, in which the computational load and the number of data memory units can be effciently reduced.

  本文提出了一种计算陷波周期图的新算法，它可使运算量和存储容量大幅度下降。

• a simple algorithm for frequency offset estimation is proposed, which estimates the frequency offset with the periodogram and the correlation function of the observation samples.

  提出了一种频差估计的新算法，该算法结合观测序列的周期图和自相关函数进行频率估值。

• furthermore, we study the periodogram predictor and controller seriously , using experimental data to predict and control the shipping motion.

  然后，用周期图预报及控制的方法对此问题进行了详细研究，并用实测数据进行预报计算。

• to modify periodogram by moving is a useful and effective method for either real time signal processing or non-stable signal processing.

  移动的修正周期图谱估计方法在实时处理和非平稳信号处理的场合中是常用的一种有效方法。

• if sampling length doesn't adapt rotative velocity, the results of calculation by fft or periodogram analysis will lead to pseudo-periods, which distorts the principal value function terms.

  若采样长度与回转速度不吻合，将会出现伪周期，使主值函数项中提取周期成分后的信号失实。

• in addition, the key algorithm of the classic periodogram spectrum estimation has been improved with split-radix algorithm that can shorten the time of program executing.

  另外，采用分裂基算法对经典的周期图谱估计的关键算法进行了改进，可缩短程序运行时间。

• an unbiased power spectrum estimation given by a modified periodogram method.

  修正周期图方法的讯号功率谱估计；

• comparison of these two methods show that periodogram method is superior to the ar model, in point of the stability of peak and distributing of the power spectrum.

  分析结果表明，从脉搏波功率谱的主峰及谱分布稳定性的角度来说，周期图法比ar参数模型法具有更优越的性能。

• 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.

  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。