Mutual information method and correlation integral method were presented to get the two optimal parameters. 分别采用互信息方法确定重构最佳时延和和关联积分法确定重构嵌入维数。
Correlation analysis on time integral of operation and bonus assignment 手术计时积分与奖金分配的相关分析
It is a new arisen theory of optimization in recent years to implement the optimum control by correlation integral technology in the reaction-regeration system in FCCU. 针对催化裂化反再系统,采用相关积分技术实施优化控制,是近年来新出现的一种调优理论。
Prediction of building subsidence using correlation integral method 关联积分用于建筑物沉降分析预报的研究
Pre-seizure transitional phase of the EEG was detected with correlation integral method. 目的研究用相关积分预报癫痫发作的效果。
Thus, nonlinear correlation integral method is an effective means in the investigation of the process of loosing compressor aerodynamic stability. 分析表明,非线性的相关积分分析方法是进行压气机气动失稳过程研究的有效手段。
On the Correlation of J-Contour Integral and the Stress Intensity Factor of Mixed-Mode Fracture 复合断裂中的回路积分J与应力强度因子的关系
The correlation integral method can estimate both the time delay and the embedding window, and can avoid subjectivity in calculating the embedding window. 该方法联合考虑了嵌入滞时和嵌入维数,可同时计算出嵌入滞时和嵌入窗宽,避免了以往确定嵌入窗宽的主观性。
By means of applying these measuring parameters to a case of our experiment, it demonstrates that the correlation integral value, etc. are effective for the nonlinear monitoring of operating condition, identification of surge intensity and measuring of pressure unsteadiness in centrifugal compressors. 以实验分析论证了相关积分值等三个监测参数在离心压气机运行工况监测、喘振强度辨识和压力信号非平稳性度量中的有效性。
Relative degree of unsteadiness based on the reference distance and intensity of surge based on the correlation integral value were defined to analyze the degree of instability and surge in centrifugal compressors quantitatively. 为了定量分析离心压气机失稳和喘振的程度,分别定义了基于参考距离的相对非平稳度和基于相关积分值的喘振强度。
In this paper, two criteria are given for nonlinear correlation of economic systems, which are correlation integral and correlation dimension and BDS statistics. 给出确定经济系统非线性相关的两个判据:(a)关联积分与关联维数;(b)BDS统计。
Research on Diagnosis Method Based on Correlation Integral 基于关联积分的诊断方法研究
Preliminary application of spatial correlation method of integral hour values of geomagnetic Z component to earthquake prediction in Jiangsu area 地磁Z分量整点值空间相关法在江苏地区地震预报中的初步应用
In this paper, autocorrelation, space correlation, and integral scale of turbulence were discussed, using theory of turbulence statistics and field observation data. 本文根据湍流统计理论和野外观测数据,详细分析了林带背风面湍流自相关、空间相关和湍流积分尺度特征。
Nonlinear monitoring of the centrifugal compressor surge process based on the correlation integral method 基于相关积分法的离心压气机喘振过程的非线性监测
There was a negative correlation between syndrome integral and cognitive index score by the relative analysis. 1. There was a remarkable correlation between the syndrome of kidney deficiency and resemblance. 经相关分析发现中医证候积分与认知指标得分呈负相关:①肾精亏虚证与相似性显著相关;
State space reconstruction is the basis of nonlinear analysis and the C-C method derived from the correlation integral is an efficient way to estimate the two parameters for state space reconstruction, the delay time τ_d and delay time window τ_w. 重构相空间是非线性分析的基础,利用关联积分导出的C-C方法是估计相空间重构参数延迟时间τd和延迟时间窗τw的有效方法。
Analysis of Correlation between Integral UV Absorption ( UV_ ( ai)) and Conventional Organic Index in Wastewater 废水的紫外吸光值积分(UV(ai))与常规有机污染物指标的关联性分析
The characteristic analysis of the calculating for the time series fractal dimension is discussed. An formula for calculating the correlation integral by the point distribution Probability function in phase space is obtained. 就时间序列分数维的计算过程进行特征分析,用相空间中点分布的概率密度函数推导出关联积分的计算公式,并就一般分数维的计算方法作了误差分析。
Low-pass filtering can improve the effectiveness of correlation integral method in stall precursor detection. 低通滤波可以提高相关积分方法检测失速征兆的时效性。
In the analysis of the trend of a correlation integral, the impression for a continuous dynamical system is different from that of a discrete dynamical system in delay time and embedding dimension. 通过分析关联积分谱的变化趋势,发现延迟时间与重构相空间维数对连续动力系统和离散动力系统的作用效果是不同的,且选择最佳延迟时间对计算关联维数的意义不大。
Based on correlation integral, the unsteadiness-measuring parameters of equipment dynamical process are defined which are absolute degree of unsteadiness, relative degree of unsteadiness, absolute ratio of unsteadiness and relative ratio of unsteadiness. 以相关积分为基础定义了设备动态过程非平稳性的度量参数:绝对非平稳度、相对非平稳度、绝对非平稳率、相对非平稳率。
Correlation Integral Analysis of 1/ f Noise in MOSFET's MOSFET1/f噪声的相关积分分析方法
Application of Correlation Integral to Diagnosis for Valve Leakage Faults 发动机气门漏气诊断的关联积分法
The process of loosing compressor aerodynamic stability in a turbojet engine was analyzed using the correlation integral method. 对某涡喷发动机压气机的气动失稳过程进行了相关积分分析。
The correlation integral method is used to analyze 1/ f noise in MOSFET's. It is found that the device noise is similar to 1/ f noise from RTS superposition model. 文章将相关积分方法用于MOSFET1/f噪声分析,发现器件的1/f噪声与RTS叠加模型产生的1/f噪声相关积分极其相似。
Analyzing the influencing factor of correlation dimension, a method to scaling region recognition and correlation dimension computation automatically based on second local slope of correlation integral is presented. The effectiveness of this method was verified by the analysis of Lorenz attractor. 提出运用关联积分曲线的二阶局部斜率实现无标度区间的自动识别,从而实现关联维数的自动计算,运用该方法对Lorenz系统的分析证明了其有效性。
In this paper we introduce the method based on the pressure signal at the outlet and the method based on pressure signal at the first stage, and also discuss the wavelet variance algorithm and the correlation integral algorithm. 本文介绍了基于压气机出口压力信号的检测方法和基于第一级静压信号的检测方法。并详细地讨论了小波方差算法和相关积分算法。
For this problem we make use of man-machine combination within the permitted error and improve the calculation of correlation integral to obtain the correlation dimension of seismic traces. 基于这个问题,分析了在误差允许的范围内,采用人机结合的方式以及对关联积分的计算进行改进以求取地震道的关联维数。
First, the theory and methods of phase space reconstruction are studied as the basis of chaotic diagnosis and analysis. Emphasis is given on the correlation integral method, which is used to calculate the embedding parameters of phase space reconstruction of hydrological dynamic system. 首先对混沌识别和混沌分析的基础&相空间重构理论和方法进行了研究,重点讨论了关联积分法,并将其用于确定水文系统的相空间重构参数。