方差函数 meaning in Chinese
variance function
Examples
- According to the statistic characteristic of covariance function , parameter estimation can be given for kernel function
由协方差函数的统计特征，可给出核函数的参数估计。 - Studies have been made on arithmetic realization of apsd estimate in a high - speed detect system , since the way of calculating cpsd is only a little different from that of calculating apsd
鉴于互功率谱密度估计算法只需将自功率谱密度估计算法中的自协方差函数换成互协方差函数,本文仅研究和讨论了自功率谱密度估计算法及其实现。 - If the covariance stationary processes are one dimension , for given data , covariance function and spectral density function can be estimated , and there is no need to select kernel function and its parameters
如果协方差平稳随机过程的状态是一维的，对给定的样本点，给出了协方差函数的估计和其对应谱(密度)函数估计，而不必选择核函数及其参数。 - Using square error function and the barycenter algorithm of light intensity as the merit function of focusing and alignment respectively , the system analyzed the images captured by charge coupled device ( ccd ) in the projection screen to produce feedback signals
该系统运用数字图像处理技术，以方差函数和光强重心算法分别作为清晰度调节和三色和色调节的评价函数，分析电荷藕合器件( ccd )采集的局部图像，产生反馈信号。 - For the given sample points , and matrix formed by covariance function with sample points as parameters , when the number of sample points approaches infinite , it is proven that this matrix spectrum will approach the spectral approach theorem for positive - definite kernel of integral equation
对给定的样本点，由样本点为变量的协方差函数构成的矩阵，当样本点个数趋于无穷大时，证明此矩阵谱逼近于积分方程正定核的谱逼近定理。