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3下载:
C-C算法应用关联积分能够同时估计出时间延迟和嵌入维数,是相空间重构的前提。
本程序通过C-C算法计算duffing方程产生的混沌时间序列的时间延迟和嵌入维数。-CC algorithm is used to simultaneously estimate the correlation integral time delay and embedding dimension, is a prerequisite for phase space reconstruction.
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对混沌时间序列相空间重构C—C方法的三点不足,提出了一种基于改进的C-c方法的
确定曩优时延与嵌入窗的新算法.在关联积分计算过程中引入了权衡计算精度与速度的可调参数,
合理选择试参数,能在不严重损失估计精度的前提下,大大加快计算速度。在理论分析的基础上,
用所提出的算法对三种混沌序列进行相空间重构,仿真结果表明该算法对最优时延的选择更准确,
对最优嵌入窗的选取更可靠。-Of chaotic time series phase space reconstruction method
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广义互相关函数,用于时延估计的运算,很好用。-Generalized cross-correlation function for time delay estimation of the operation, it just works.
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混沌工具箱(matlab):
产生混沌时间序列
求时延(delay time)
求嵌入维(embedding dimension)
求关联维(correlation dimension)
等等.....
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进行等时延分段,并对等间隔段的两个时延矩阵分别求取均值,采用类似联合近似对角化,估计出最优化的酉矩阵,-ing second-order statistics (different time-delay correlation matrix) of non-stationary and structural characteristics of the signal timing can roughly estimate that the instantaneous linear mixture
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自相关法求取时间序列延时的函数,包括Simulink产生时间序列的文件,两个主函数,以及运行程序-Since the correlation function to obtain time series of delay, including time series generated Simulink file, the two main functions, and operational procedures
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混沌时间序列预测法的实现仿真,时间延迟,关联维,最大Lyapauon指数-Chaotic time series prediction method to achieve simulation, time delay, correlation dimension, largest Lyapauon index
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用CC方法解决时间延迟、关联维D、延迟窗口,以及他们的关系-Resolve the time delay with the CC, the correlation dimension D, delay window, and their relationship
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用GP算法解决时间延迟、关联维、延迟窗口,以及他们之间的关系-GP algorithm used to solve the time delay, correlation dimension, delay window, and the relationship between them
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相关法时延估计的matlab仿真,能对任意wave文件使用,并进行误差分析-Correlation time delay estimation of matlab simulation, can use any wave file and analyze the errors
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以往的测时间延迟的方法时利用信号相关性来求的,利用MUSIC算求两信号的时间延迟具有很高的精度。-Measurement of time delay before the method used to seek correlation signal, the use of MUSIC operators seek time delays of two signals with high precision.
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通过时频转换法来,来画BPSK巴克码的模糊函数,tao(时延)切面,fd(多普勒频移)切面。以及其模糊度图的画法-Through the time-frequency conversion method to draw Barker code BPSK ambiguity function, tao (delay) section, fd (Doppler shift) section. And its ambiguity diagram drawing
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几个天体物理上拥有的程序,如时间延迟的计算、相关性分析等。-Astrophysics has on several programs, such as time delay calculations, correlation analysis.
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时间序列相关性分析假设有两个时间序列X={x1,x2,…,xn},Y={y1,y2,…,yn},X和Y在延迟l处的相关系数R(l)计算公式如下:
其中,l的最大取值为n/2。当l的值从0变化到n/2时,就可以得到多个R(l)值,令R(l)最大值所对应的延迟为lmax,如果R(lmax)>σ(一个人为定义的阈值),那么我们就说时间序列X和Y具有延迟相关性,Y延迟于X的量为lmax。-Time series correlation analysis assumes that there a
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该程序用于求解时间延迟t和嵌入维数m,该方法不同于自相关函数法和gp法,可以同时求解出两个量t和m的值,非常方面,在求解lyapunov指数时经常用到该方法-The procedure used to solve the time delay t and the embedding dimension m, the method is different from the self-correlation function gp method can solve the two quantiti
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MATLAB非线性混沌工具箱:时间延迟、嵌入维、最大李雅指数级关联维、熵等参数。有了自己就不用编程了!-The MATLAB nonlinear chaotic toolbox: the time delay, embedding dimension, maximum Josephine exponential correlation dimension, entropy and other parameters. With their own without programming!
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基于互相关分析的时延估计算法;基于互相关分析的时延估计算法-cross-correlation analysis for time delay calculation
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用m序列的自相关性求通道时延,并用延时器进行时延均衡,完成通道校准-With m sequence for channel since the correlation time delay, delay and delay (CCM) equilibrium, complete channel calibration
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Generalised Cross Correlation Algorithms. It is useful to estimate the time delay in almost all situations
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进行时延估计 包含双谱和互相关两种方法 没有高阶累积量-For time delay estimation contains double spectrum and cross-correlation two ways No higher order cumulants
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