1) autocovariance function
自协方差函数
1.
In this paper, the autocovariance function and the relationship between linear and general bilinear time series model are derived.
对非线性时间序列分析中常见的双线性时序模型,本文给出了一般双线性时序模型自协方差函数间的关系以及与线性时序模型自协方差函数间关系的联系,运用Volterra级数表达式导出了双线性时序模型的脉冲响应函数和频率特性函数。
2.
This paper derived the recursive formula of autocovariance function and a three-stage algorithm of computing spectral density of MAR model,thus we solved spectral analysis problem of MAR model.
针对MAR模型导出其自协方差函数的递推关系式及计算谱密度的算法,从而从理论上解决了这一模型的谱分析问题。
2) auto-covariance function
自协方差函数
1.
In this medel, the auto-covariance function and the cme-covariance function of different variables calculated from the known data can be used to obtain the solutions by the Mihant iterative methed, in order to obtain such unknown undetermined parameters as the multiple variable linear combination coefficients b1, b2,…, bp,the fractal power-law interception a and the grapht box dimension s.
提出多变量分形体的数学模型，其可由各变量的自协方差函数和互协方差函数应用麦夯脱法进行选代求解，以获取多变量线性组合系数b1，b2，…，bp，以及分形幂律截距a和graphf的盒维数s等未知的待定参数。
2.
In the paper, we get a stationary solution of Langevin equation with fractional Ornstein-Uhlenbeck process noise, and proved that the decay of its auto-covariance function is like that of a power function.
可以证明,受驱于分数O U过程的由Langevin方程也有平稳解,且有幂函数形式的延迟自协方差函数,但是分数O-U过程的Lamperti变换得到的平稳过程却有指数衰减型的自协方差函数。
3) covariance function
协方差函数
1.
Estimation of covariance functions for test day milk yield records of Chinese Simmental cows;
中国西门塔尔牛测定日产奶量性状协方差函数估计
2.
Discussion of the methods of the covariance function prediction for the fitting of abnormal height;
协方差函数拟合高程异常方法探析
3.
The analytical interpretation to Kriging estimation and the algebraic determination of a covariance function's parameter are presented.
首先引入利用旋转面作为基函数的函数逼近概念 ,在此基础上经过复杂的矩阵推导证明泛克立格法可表示为传统的带权最小二乘多项式拟合与以旋转面作为基函数的函数逼近 ,并在一定条件下 (随机场高度连续无块金效应 )论证了协方差 (即旋转面 )的参数可通过数学分析的方法确定 ,给出了以高斯函数为例确定协方差函数的两个准则 。
4) covariance functions
协方差函数
1.
Estimation of Genetic Parameters and Covariance Functions of Body Weight in Corriedale Sheep;
考力代绵羊体重生长的遗传参数与协方差函数估计
2.
Growth records of 686 pigs of SD-Ⅱ Swine Line over 6 generations were used to study the influence of litter effect and animal effect,which was used as different additional random effect,on estimating additive genetic and permanent environmental covariance functions.
将 6个世代的 6 86头SD -Ⅱ系猪的生长记录资料用于研究 ,分别将窝效应和个体效应作为额外随机效应时对估计加性遗传和永久环境协方差函数的影响。
5) Biased auto-covariance function
有偏自协方差函数
6) autocovariance generating functions
自协方差发生函数
1.
This paper deals with the autocorrrelation structure of product seasonal modelsΦ(B)Φ(B~8)x_t=θ(B)■(B~8)a_t by use of autocovariance generating functions,and finds out that for p=o,the model is parametersepar able.
本文以自协方差发生函数为工具,讨论了乘积型季节性模型。
补充资料：自协方差
自协方差
autocovariance
自协方差!au血目】怕rian沈;a盯.吸脚脚圈侧.].随机二连程犬的 戈和戈*、的协方差(covarian代).若以〔X记随机变量X的数学期望，则自协方差等于 日戈一EX)(尤一*一任丫衬“自协方差”一词通常用于(宽)平稳随机过程(s tat似。aryStochastic Process).对这种过程，自协方差只依赖于h.且它与自相关(auto一correlation)的差异仅在于多了一个因子，该因子就是戈的方差.‘协方差函数”和“自协方差函数”这两个术语也和“自协方差’这个术语在同一意义下使用.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条