对协方差函数的意义和应用做了讨论。
Significance and application of covariance functions are discussed.
介绍具有随机设计的一类半参数方差函数模型。
We propose a general semiparametric variance function model in a random design setting.
由协方差函数的统计特征，可给出核函数的参数估计。
According to the statistic characteristic of covariance function, parameter estimation can be given for kernel function.
最后讨论了零内尺度模型下归一化强度协方差函数随湍流强度的变化情况。
Finally, the variation of the normalized covariance function of intensity with different strengths of turbulence under zero inner model is discussed in detail.
结果表明，协方差函数可以反映出体重在连续的年龄尺度上的遗传和表型变异。
The results showed that covariance functions could reflect the changes of genetic and phenotypic variation for body weight in continuous scale of age.
讨论了不同湍流强度、波长和传播距离对强度协方差函数和归一化强度方差的影响。
The influence of turbulence strength, wavelength and propagating distance on the covariance function and normalized variance of the scattering intensity is discussed.
通过长程情况下的马尔科夫近似，得到了互相关函数，对数振幅和相位协方差函数。
According to the Markov approximation under a long haul condition, we get the inter-correlation function, log-amplitude and phase covariance function.
结果表明，窝效应只能反映部分永久环境效应，估计协方差函数时需配合全阶多项式；
The results showed that litter effect only reflected part of the permanent environmental effects and full order fit was necessary to estimate the covariance functions.
地统计学的基础理论与方法主要包括：区域化变量、半方差函数、克立格空间插值技术。
The geostatistics's basic theories and techniques include the regionalized variables, the semivariance function and Kriging Interpolation.
本文通过对航空重力测量数据的分析，建立起具有空间相关特性的空间协方差函数模型。
By the analysis of airborne gravity measurement data, this paper constructs a space covariance function model with spatial characteristics.
一阶趋势的OK方法中半方差函数模型选用高斯型的比选用球状和指数型的插值效果相对要好。
Within the method of first-order trend OK, Gaussian semi-variogram model performed better than both the spherical and exponential models.
本文通过空间扰动位协方差函数特性，得出卫星重力梯度数据与引力位系数的相关协方差函数。
Least Squares Collocation is used to educe the function that can directly compute gravitational potential coefficient by satellite gravity gradiometry data.
其根据多普勒雷达径向速度资料的特点，水平方向采用非各向同性的单变量背景场误差协方差函数。
As for the characters of the Doppler Radar radial velocity data, the single variable background error covariance is used. And the anisotropic covariance function is adopted in the horizontal plane.
自动三色会聚在得到方差函数作为清晰度评价函数后，提出了减少清晰度评价调节时间的具体方法。
After getting the variance method to evaluate the quality of the focusing, some special methods to reduce the focusing evaluation time are proposed.
首先通过一个变换，将模型转换成一个顶点设计问题，从而构造一个简化了的方差矩阵，求得方差函数。
First, the model is transformed into a vertex design by means of a transformation, and a simple variable matrix and a variable function are given.
实验结果表明在该系统中锐度函数法作判据的效果要优于均方差函数法，最后分析误差因素并提出修正途径。
Experiment shows that acutance function method is better than mean square error function method. The error factors are analyzed and corresponding improvement approaches are put forward.
本文提出了一种新型的并行三维纹理综合算法，即：基于图象的自协方差函数，均值和方差的纹理综合方法。
A new 3-d texture synthetic method is proposed in this paper, i. e., the parallel 3-d texture synthetic algorithm based on autocorrelation parameters, the mean and the variance of texture images.
主要研究结果如下：1。基于几种非参数估计理论，构造了非参数自回归模型条件方差函数的非参数估计表达式。
The main contributions are as follows:1. Based on several nonparametric estimation theories, several estimation expressions of conditional heteroscedastic function are constructed.
与传统的方法相比，无需对随机信号的协方差函数的功率谱进行分解，不受限于协方差函数的功率谱是否为有理式。
Compared with the traditional method, it does not need disassembling the power spectral densities of stochastic signal covariance and is not bound to if the power spectral densities are rational.
表明： 基于氨基酸组成和有偏自协方差函数为特征矢量的BP神经网络预测蛋白质二级结构含量的方法可有效提高预测精度。
It is shown that the BP neural network method combined with the amino-acid composition and the biased auto-covariance function features could effectively improve the prediction accuracy.
您可以利用此函数将您的样本方差计算转换为样本标准差计算，如清单8所示。
You can use it to turn your variance measurement into a standard deviation measurement, as shown in Listing 8.
采用了具有积分性质的切换指标函数作为切换法则和最小方差的控制方法构成了多模型自适应控制器。
A switching function with integral property and minimum variance algorithm are used to set up the multiple model adaptive controller.
在很多场合只好用有间隙采样做阿仑方差，然后用巴勒斯偏函数加以修正，其繁杂程度是可想而知的。
In many cases, Allan variance has to be measured with dead time and then modified with Barnes bias function.
其中，对于观测向量协方差阵的谱分解估计，我们很容易得到它在一些损失下的风险函数。
Thereinto, for the spectral decomposition estimate of the covariance matrix , we can gain the risk functions under some losses.
该方法分析了局部影像统计特性，应用均值或均值—方差匹配正态函数，对要融合的两幅影像局部直方图进行匹配。
The proposed method analyses local image statistics and then matches the local histograms of two images to be fused by applying mean or mean variance matching normalization functions.
本文通过建立VAR模型，通过脉冲响应函数与方差分解的方法，研究了GDP与居民可支配收入变化冲击对房地产价格的动态影响。
Basing on the var model, we use the impulse response function and variance decomposition method to analyzed the dynamic effect of the change of GDP and income on the housing price.
阐述随机场理论在进行地基可靠度分析中的作用，指出合理确定方差折减函数对地基可靠度分析具有重要意义。
The key to application of random field theory to reliability analysis is how to combine the reduction function of variance obtained by the random theory with the reliability theory.
另外利用脉冲响应函数和方差分解方法考察二者之间相互影响的强度和初期影响情况。
It USES impulse response function and variance decomposition analysis to review interactional intension and incipient infection in them.
文章介绍了数理统计中实数或向量参数的正函数的后验平均、方差和预测密度的近似计算。
This paper introduces the approximate calculation of real number's or of vector parameter positive function's posterior mean, variance and forecasting density in mathematical statistics.
文章介绍了数理统计中实数或向量参数的正函数的后验平均、方差和预测密度的近似计算。
This paper introduces the approximate calculation of real number's or of vector parameter positive function's posterior mean, variance and forecasting density in mathematical statistics.
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