查询词典 random deviate

Based on product moment of normal random variable cariable calculating covariance function of square of normal stochastic process has been given.

在正态随机变量乘积矩基础上，给出了正态随机过程平方后的协方差函数的计算。

The application of Karhunen-Loeve expansion to simulating the soil parameters random field is researched;and the characteristics of the KL decomposition are analyzed;and the Galerkin finite element method is adopted to solve the integral equation numerically in the irregular region and for arbitrary covariance function and to simulate the anisotropic conductivity field.

研究了Karhunen-Loeve展开在土性参数随机场模拟中的应用，分析了KL展开的特点，针对不规则区域和任意类型协方差函数提出了积分方程的Galerkin数值解法，模拟了土壤渗透系数各向异性随机场。

In this paper, the random effects of covariance matrix positive for the promotion of research.

把随机效应的协方差推广为正定阵进行研究。

School of Electronic and Information Engineering,Dalian University of Technology,Dalian,Liaoning 116024,ChinaStable processes can better model the impulsive random signals and noises in physical observation.This paper briefly describes its spectral representation,proposes a new different spectral density from power spectrum density of second order processes,thus can get a new concept of stable white noise based on covariation spectrum,and a method of identification of nonlinear PAR system based on least p-norm.

描述了稳定分布的谱表示，提出了共变谱密度的概念，得到一种基于自共变序列与共变谱的稳定分布白噪声与有色噪声的概念及其判断标准，对传统意义上的白噪声进行了广义化，依据多项式自回归系统模型，对基于稳定白噪声输入的系统输出非线性稳定有色噪声建立其非线性PAR模型，提出基于最小P范数的EIRLP算法对非线性PAR系统进行辨识。

From the perspective of covering points in high-dimensional space, we discussed the theory of constrictive PONN based on knowledge rules. PONN's general constructive algorithm and its two special methods based on random sampling and barycenter rules respectively were proposed in this paper.

从高维空间样本点覆盖的角度，讨论了基于知识规则的构造性优先排序神经网络算法的原理，提出了网络构造过程的一般算法以及基于随机取样规则和重心点规则的两个实例算法。

Then , aiming at characteristic of MCG data , we design the object of error analysis and make concrete analysis by error theory . We draw the conclusions that MCG signals measured by SQUID include obvious random errors and no system errors and crassitude errors .

本文根据心磁信号的测量过程，分析了测量过程中可能产生的误差，针对心磁数据的特点设计了误差分析对象，应用误差理论进行分析计算，得出了通过SQUID测得的心磁信号包含明显的随机误差，无根据怀疑存在系统误差和粗大误差的结论。

Methods:168 teeth that acute periapical periodontitis random divicded into A or B group ,A was calcium hy,droxide group;B was formaldehyde and cresol.

168颗急性根尖周炎患者随机分为A、B两组。A组为氢氧化钙组；B组为甲醛甲酚组。

Methods used in the research are as follows: Random sample using"notional questionnaire about student's cribbing in an examination at university",interview and statistics.

高等院校里如何端正考风，预防和遏制学生的考试作弊行为，已成为教育工作者亟待解决的一个重大课题。日常管理以及调查分析发现，考试作弊的产生有其复杂的主客观原因。

A fast algorithm, which is based on polarity correlation method for the calculation of normalized cross\|correlation function, is presented. It is suitable for stationary random signals which have Gauss distribution.

针对工程测试中较常见的具有Gauss 分布的平稳随机信号，提出了一种基于极性相关方法的计算信号间标准化互相关函数的快速算法。

Based on random signal theory, in order to quantitatively research drilling string by vibration measurement method, the article sketches out a new methodthe identification of drillstring system using the cross correlation function. Using input signal, and output signal, the impulse response of drill-string is obtained. Some problems...

在随机信号理论基础上，提出了一种用互相关辨识钻柱系统的新方法；结合输入信号和输出信号，利用钻柱系统的脉冲响应，讨论了钻柱的临界转速、钻柱共振、钻柱与井壁之间的相互作用、所钻地层岩性等钻井工程问题。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。