The walsh characteristic function and moment of χ ~ 2-distribution T-distribution and F-distribution

χ~2-分布、 T- 分布、F-分布的W特征函数和矩

This approach has to estimate parameters for many different k leading to very demanding computation time when the density function of mixture model is T-distribution .

这种方法需要估计多个k值下的参数，当混合模型的密度函数为 t 分布时，计算复杂 度 会 变得 异常的高。

For datasets generated by the linear SEM the number of samples is not a small case partial correlation coefficient statistic submit the t-distribution .

首先，从 理论上 证明了对于线性结构方程模型产生的数据，在样本数不是很小的情况下，偏相关系数的统计量服从 t 分布。

Non-central t-distribution used in the lower limit calculation of reliability

非中心 t 分布 函数在可靠性下限计算中的应用

A new weight function based on the t-distribution is adopted in this paper which increases the accuracy of the element-free Galerkin method ( EFGM ) to some extent .

采用了一种基于 t- 分布的新型权函数，提高了无网格伽辽金法的计算精度；

This paper presents a new method for the fast segmentation of video objects based on the change detection and spatial-temporal filters . It can detect changes between frames by the t-distribution significance test without the noise variance .

本文提出了一种结合变化检测与时空滤波器快速分割视频对象的新方法，该方法利用 t 分布显著性检验检测帧间的变化，不需要 知道噪声的方差；

The MLEs in a Multivariate t-distribution with Uniform Structure

具有均匀结构的多元 t- 分布的MLE

Further considered the considerable uncertainty of current sample variance a reliability estimation method based on t-distribution theory and empirical logarithmic standard deviation is proposed .

进一步考虑到 工程实际中当次可靠性 试验的样本方差具有较大不确定性的因素，提出了基于对数标准差经验 值 的 t 分布可靠性评估方法。

By the t-distribution model with family of super-Gaussian distribution and the model with super-Gaussian distribution we can separate the mixture of sub-Gaussian and super-Gaussian source components .

算法中使用 t 分布 密度模型作为超高斯信号的概率估计，与具有次高斯特性的 密度模型相结合，使得算法满足超高斯、次高斯混合信号的分离，同时能有效抑制脉冲噪声。

The Uniformly Asymptotic Normality of the x ~ 2-distribution t-distribution and F-distribution

x~2分布、 t 分布和F分布的一致渐近正态性

Selection of the initial value for the percentage point of the noncentral t-distribution

非中心 t 分布分位数的初值选取

After obtaining the robust initial estimation the method is adopted that it identifies outliers in the linear model stepwise using t-distribution statistics in the process of recursive estimation and a maximal likelihood estimation of the parameters in the linear model is finally obtained .

在获得了稳健初始估计后，文中提出在递推估计过程中利用 t- 分布 检验统计量 逐个 辨识线性模型中的 所有异常值，最终求得线性模型中参数的极大似然估计。

Asymptotic Distribution of Matrix t-distribution

矩阵 t－ 分布的渐近分布

In chapter 2 we get a closed form for all the parameters in Bayesian method of AR ( 1 ) by using the properties of t-distribution and IG-distribution .

第二章在AR（1）模型的研究中，利用 t- 分布和逆Γ- 分布的性质，给出了各个参数的显式表达式；

New calculation and application of statistics t-distribution

统计 t 分布的新计算与应用

The calculated individual error of flow for varying collecting and handling of information is loss than 0.5 % . The relative error is ± 0.34 % with 5 times measurements under same operation conditions according to the theory of 95 % certainty of T-distribution .

装置精度 0.3%，信息变送、采集、处理流量单项计算误差在±0.5%以内，同工况5次测流 T 分布95%置信 度相对误差±0.34%。

So learned person use GARCH model based on t-distribution and Generalized Error Distribution to describe return rate series .

为 正确拟合收益率序列， 许多 学者提出用基于 t分布和广义误差分布（Generalized Error Distribution，简称 GED）的GARCH族模型。

However it can achieve by simulation . Through the simulation of various situations it illustrate that the Procedure of Searching Zero Effects is applicable to the t-distribution .

但可通过模拟来实现，通过对各种情况的模拟计算来说明零效应搜索法对 t 分布也适用。

Because the density function of t & distribution is also a symmetric distribution the Procedure of Searching Zero Effects is also applicable to t-distribution .

因为t分布的密度函数也是对称分布，所以零效应搜索法对 t 分布也适用。

Then a t-distribution significance test was performed on the N temporal difference samples for every pixel to judge whether it was changed .

对每个象素点时域上的N个帧差样本 值进行 t 分布显著性检验，判断象素点是否发生了变化；

Are also given . Under the assumption that the probability distribution of the clock deviation approaches the normal distribution a hypothesis testing scheme of clock synchronization based on non-central t-distribution is presented .

在时钟偏差的统计分布特性近似于 服务正态分布的假设条件之下，提出了基于非中心 t 分布的时钟同步假设检验方案。

Analyzing the spare parts demand of engineering machinery and use normal distribution t-distribution and Poisson distribution theory to calculate the reasonable inventory level and safety stocks to meet the service level requirement .

分析工程机械零配件需求，并结合正态分布、 t 分布、泊松分布的理论，计算合理的零配件存货水平和安全库存值，以达到特定的服务水平的要求。

Synthetic Aperture Radar Speckle Filter Based on T-Distribution

基于 T 分布的雷达斑点滤波方法研究

They can be expressed by the nonlinear equation for the Cdf ( cumulative distribution function ) of generalized noncentral t-distribution .

它们可用广义非中心 t- 分布的分布函数的非线性方程表出。

A new quality control approach to the small batch production which used dynamic control limits based on t-distribution was presented and the simple and convenient algorithm was also addressed .

接着 考虑到并行 工程中产品的可制造性设计 要求，针对目前 制造 企业 普遍采用的多品种小 批量生产模式，提出了一种 对应的产品制造质量管理与控制系统。

The paper based on the concrete data discusses the random errors in multiple measures in the college physics experiment and the evaluation of type A component of uncertainty and its level of confidence when t-distribution follows .

本文通过具体数据阐述大学物理实验中多次测量的随机误差遵循 t 分布时，不确定度A类分量的评定及在其评定下的置信 概率。

The results show that EGARCH is the best model for forecasting long-term volatility . Furthermore using EGARCH with the Student t-distribution gives better results than with a normal distribution .

实证分析结果表明：EGARCH模型比较适合对我国股票市场波动性作长期预测，若假设收益序列服从 t 分布，由此改进的 EGARCH-T模型会得到比正态分布下更好的 拟合与预测效果。