chi-square distribution

This paper analyzes several arithmetics of track correlation and set forth a arithmetic which integrates NNA with chi-square distribution , and computes statistic mean value to select track .

本文分析了多种航迹关联算法，提出一种将最近邻法与chi-square分布相结合，通过计算统计均值选择航迹的关联方法。

It is found that the pdf is a noncentral chi-square distribution for a synchronized code , but a central chi-square distribution for the unsynchronized situation .

结果发现，对于码同步时，pdf是非中心X平方（Chi-square）分布，然而，对于码非同步时，pdf是中心X平方分布。

In this paper , it proposes three SD algorithms to aim to improve the loose of layer radiuses : ( 1 ) It proposes a statistical pruning SD based on the expectations of chi-square distribution ( EPSD ) .

本文从改进层内各检测半径的松散性出发，提出三种改进的球形译码算法。如下：（1）提出一种基于卡方分布期望值的统计裁剪球形译码算法（EPSD）。

Then , we describe the time distribution of practical overtime by chi-square distribution . After deducing the wage-output efficiency , we take it as the assessing standard of wage-pricing method , and find the optimization model with which the optimal wage-pricing is satisfied .

然后应用X2分布描述了加班时实际工作时间的分布，得出了工资产出效率，以此作为工资定价的评价标准，导出了最优工资定价方案满足的优化模型。

In this paper , we use Chi-square distribution instead of Gaussian distribution as the model of ASE noise . Irregular repeat accumulate ( IRA ) codes have high performance very closed to Shannon limit . We apply IRA codes to the long haul fiber communication system .

本文提出用x平方律分布模型代替高斯信道模型，并将高性能的不规则重复累积（IRA）码应用于远程光纤通信系统。

Noncentral chi-Square Gamma Distribution Clutter Model

非中心化chi平方伽玛分布杂波模型

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

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。

A generalized clutter model , the noncentral chi-square gamma distribution model is presented in this paper , which is based on physical laws and is capable of well matching the characters of the two distributions mentioned above .

这里提出一种非中心化chi平方伽玛分布模型，可精确地模拟海杂波，概率分布特性可与上述两者接近，并且能从物理含义说明杂波产生机理。

Objective To compare and analyse cyclist data by Chi-square test , Round distribution , HOMALS separately .

目的运用卡方检验、圆形分布、同质分析对周期性数据进行分析比较。