The variations of the ApEn and the correlation dimension were calculated.
计算近似熵与相关维的变化。
First, the calculation of the correlation dimension of the chaotic analysis method is studied.
首先对混沌分析中的关联维计算方法进行了研究。
The results indicated that when the engine gave out the correlation dimension is different from that of working normally.
结果表明，发动机发生故障时的关联维数与其正常工作时的关联维数不同。
Thus, the correlation dimension can be taken as the characteristic parameter to identify the working states of the gearbox.
因此，可用关联维数作为区分齿轮箱工作状态的特征参数。
Introducing correlation dimension method in the fractal theory and the correlation dimension curve of the synthetic seismic profile is analyzed.
引入分形理论中的关联维方法，对合成地震剖面的关联维曲线进行分析。
Therefore, when deciding tolerances of the process before or after nitriding, the formulas involving the correlation dimension chain must be adopted in calculating.
因此，在确定氮化前后的工序尺寸公差时，应采用相关尺寸链的公式进行计算。
From the correlation dimension analysis of noise signals of internal combustion engine, it was proved that engine noise signals have an obvious fractal characteristic.
通过对实际测量的内燃机噪声信号的关联维数计算分析，证明了内燃机噪声信号的分形特性。
In order to reduce the influence of noise on the correlation dimension which is used in the hydraulic pump fractal fault diagnosis, a denoising method using adaptive wavelets was presented.
针对液压泵故障分形诊断方法中噪声对关联维数的影响，提出了自适应小波降噪的思路。
Comparison with the correlation dimension of solar insolation curve, it shows that solar insolation change controls the basic pattern of climate changes, then superposes territorial characteristic.
与太阳辐射曲线关联维数对比表明，太阳辐射控制了气候变化的基本格局，在此基础上叠加了区域性特征。
Comparison with the correlation dimension of solar insolation curve, it shows that solar insolation change controls the basic pattern of climate changes, then superposes territorial characteristic.
与太阳辐射曲线关联维数对比表明，太阳辐射控制了气候变化的基本格局，在此基础上叠加了区域性特征。
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