伽马分布

非中心χ2伽马分布（NG）能很好地解释雷达杂波的物理成因，本文通过理论分析，建立了归一化杂波模型。

Noncentral chi-sqare gamma distribution ( NG ) can interpret the physical reason well , and we analyse this distribution in theory , presenting generalized radar clutter model .

基于多元伽马分布的通行能力算法研究

Urban Road Capacity Algorithm based on Multi-variant Gamma distribution

然后对节点休眠调度进行了调整，采用基于伽马分布的k覆盖异步随机休眠调度来增加节点收集的信任反馈数量，从而避免了节点异步唤醒造成的信任反馈收集盲区。

Then sleeping scheduling is adjusted to increase the quantity of feedback collection according to gamma distribution based k coverage so as to prevent the blind zone of trust feedback collection because of asynchronous awakening .

在Bayes估计中，我们假定未知参数的先验分布为伽马分布，两章都通过数据模拟对极大似然估计和Bayes估计这两种方法进行了比较。

We deduce the maximum likelihood and Bayes estimates of these parameters when the joint survival function obeys the two dimentions exponential distribution , while in Bayes approach , it is assumed that the unknown parameters have Gammar prior distributions .

伽马分布的形状参数的一种估计

A New Estimation of Shape Parameter of Gamma Distribution

同时介绍了较能贴近雷达杂波物理成因的非中心x~2伽马分布的产生原理。

Meanwhile , we introduce the noncentral chi-square gamma distribution that can interpret the physical reason of radar clutter better .

结果表明，对内蒙古中部地区这3个地点而言，沙尘暴发生时的土壤含水量服从耿贝尔分布，沙尘暴不发生时的土壤含水量服从伽马分布。

The results show that soil moisture is subject to Gumbel distribution when dust storms occur , and subject to Gamma distribution when no-dust storms occur .

回顾了原翁氏模型的建立，并基于概率统计学中的伽马分布，完成了广义翁氏模型新的推导。

This paper reviewed the establishment of original Weng model and accomplished the derivation of generalized Weng model , based on Gamma ( r ) distribution in the probability statistics .

分析认为：采煤机截齿的工作应力服从伽马分布和材料强度均服从正态分布，根据应力-强度干涉理论建立求解截齿可靠度的数学模型。

Analyses show that : work stress and material intensity of shearer picks are subject to normal . According to stress-intensity intervention theory mathematical models of shearer picks reliability is established .

海相碳酸盐岩组成本区上古生界的主体，其有机碳丰度数据符合伽马分布，平均值较低。

Marine carbonate rocks constitute the main body of upper Paleozoic rocks of the region , with the organic carbon content corresponding to gam-ma distribution and a fairly low average value .

文中还证明一致法完全适用于指数型分布，包括威布尔分布和伽马分布，部分适用于非指数型分布。

It has been proven in this work that the consistent method is completely applicable for exponential type of distributions , including Weibull and Gamma distribution , and partially applicable for nonexponential type of distributions .

这里的分层主要是指模型中解释变量的系数会服从于一个指定的多元正态分布，而在这个多元正态分布中，其协方差矩阵中的元素假定服从于逆伽马分布。

The hierarchical here mainly refers that the coefficients of the explanatory variables in the model is a specified multivariate normal distribution . In this multivariate normal distribution , the elements of its covariance matrix are assumed to follow inverse gamma distribution .

利用伽马分布描述油气藏产量随时间的变化，研制了典型曲线的理论图版，通过拟会求解，可判断油气藏的非均质程度。

Authors describe the relationship of the production versus the time by gamma distribution , and develops the theoretical plate of typical curves , which can be applied to determine the degree of the heterogeneity of oil and gas reservoirs , using matching solution technique .

将影响激光大气传输轨迹的大气折射率，取为伽马型分布。

The distribution of the atmospheric refractive indexes influencing the transmission locus of the laser in atmosphere is assumed to be the gamma mode .

研究中遵循从单孔测井曲线特征分析到典型剖面研究，并按层对高自然伽马的平面分布特征进行分析研究。

This paper studied from single well to representative sections , and then analyzed the plane features according to layers .

多道伽马能谱仪是测定伽马射线能量分布和照射剂量的辐射仪。

Multi-channel Gamma Spectrometer is a radiometer which is used to measure energy distribution and radiation dose of gamma rays .