峭度是随机变量非高斯性的一个经典度量。
Kurtosis is a classical measure of non-Gaussianity of random variable.
将其作为检测工具,利用谱峭度构造最优滤波器提取轴承故障信息。
It was used as the detection tool and a basis for designing optimal detection filters that can efficiently extract the information of rolling bearing fault.
并结合调制信号的恒模特性,提出了基于广义峭度的恒模盲信号提取算法。
Jointed the constant module (CM) character of digital modulated signal, the CM generalized kurtosis algorithm is deduced.
偏度大部分呈正偏,峭度大部分为负值,说明种群直径分布范围较大,中径材占多数。
Most skewnesses were positive, most kurtosises were negative, which showed that diameter distribution range of population with middle-diameter timber …
随后计算出代表故障特征的振动信号的峰值指标、峭度指标、脉冲指标和裕度指标等参数。
Then peak index, kurtosis index, impulsion index and tolerance index of the vibration signal are calculated. These parameters represent the characteristic of failures.
本文提出了一种基于峭度和自相关函数联合最大化的算法,并将此算法应用于胎儿心电的分离研究。
This paper puts forward an algorithm based on joint maximization of kurtosis and autocorrelation, and applies it to the separation of fetal electrocardiogram.
重点论述简易诊断中加速度和峭度系数两个参数的门限确定以及谱分析中的故障判断,达到简易诊断和精密诊断的良好结合。
Through this way to go on the diagnosis of hitch. The main statement is the two thresholds determination of acceleration and coefficient and the judgment of hitch during the analyze of chart, so…
特别地,模型的系数可选择得与股票收益分布的实际估计评均值、方差、挠度和峭度相匹配,因而就可能产生出与实际观测的股票收益分布较为一致的期权价格。
Particularly, parameters of model can be chosen to match empirically estimated mean, variance, skewness, and kurtosis of the stock return distribution. The model thus has the potential to produce…
特别地,模型的系数可选择得与股票收益分布的实际估计评均值、方差、挠度和峭度相匹配,因而就可能产生出与实际观测的股票收益分布较为一致的期权价格。
Particularly, parameters of model can be chosen to match empirically estimated mean, variance, skewness, and kurtosis of the stock return distribution. The model thus has the potential to produce…
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