为了避免经验模式分解(EMD)过程中不同时间尺度函数间的模式混叠，采用基于高斯白噪声加入的经验模式分解方法，并将之应用于旋转机械故障诊断中。
The EMD added Gauss white noise is proposed to avoid mode mixing of different time-scale IMF, and is applied in fault diagnosis for rotating machine.
其次，根据电站的多尺度特性研究了基于统计方法的故障诊断方法。
Second, the multiscale research in power station is diagnosis method based on statistical techniques.
通过具体的碰摩故障诊断实例，对比分析了经典线性方法的局限和多尺度非线性方法的优势。
Based on the specific diagnostic cases of impact-rub fault, the limitation of classical linear method and the advantage of multidimensional method are analyzed by comparison.
提出以信号各尺度能量特征值作为初生汽蚀诊断识别的判据。
The criterion of diagnosis to inception cavitation based on different scales energy characteristic of the signal was brought up.
文章就CIDP的诊断、最新治疗方法、伴发疾病、疗效评价尺度以及残余症状处理等方面的研究进行综述。
The advances in new therapy, complicated disease, efficacy measurement scale and residual symptom management of CIDP are reviewed in this paper.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
本文的主要工作包括以下几个方面：首先，利用多尺度思想对电站故障诊断特点进行了研究。
The contents in this thesis ware had mainly in the following aspects. First, the multiscale theory is introduced to diagnosis method of power station.
应用奇异值欧氏距离作为两幅图像相似程度的度量尺度从而实现轴承的故障诊断。
The Euclidean distance of singular values is used as the measurement of similarity between two gray charts, realizing fault diagnosis.
本发明公开了一种基于多尺度线调频基稀疏信号分解的齿轮故障诊断方法。
The invention discloses a gear fault diagnosis method based on multiscale linear frequency modulation-based sparse signal decomposition.
利用小波变换得到传感器信号在各个尺度上的系数，然后根据尺度系数矩阵建立主元分析模型进行传感器故障诊断。
Wavelet transform was utilized to get coefficients of each scale. Based the coefficient matrix, principal component analysis model was established to diagnose sensor fault.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
A Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
本文着眼于大范围暴雨过程天气尺度系统的诊断研究。
In this paper, investigation has been made into the large area heavy rain processes in eastern China.
本文着眼于大范围暴雨过程天气尺度系统的诊断研究。
In this paper, investigation has been made into the large area heavy rain processes in eastern China.
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