probability density

Boron particle combustion model and turbulent no-premixed combustion model were established by using King theory and probability density function in order to study the reacting fuel-rich flow field laden with boron particle in the ramjet combustor. Some obtained numerical results were tested by examination.

以King模型模化硼粒子燃烧，以几率密度模型模化湍流燃烧，对含硼贫氧推进剂固体火箭冲压发动机补燃室流场进行数值研究，并与试验结果进行了对比。

Optimal tracking control of the output probability density functions: square root B-spline model

输出概率密度函数的最优跟踪控制：均方根B-样条模型

Three methods are discussed: using fixed probability density function, adaptive probability density function and approximating the score function.

本文讨论了三个方法：使用固定的概率密度函数，自适应的调节概率密度函数和逼近品质函数。

Speech Separation Based on Gaussian Mixture Model Probability Density Function Estimation

基于高斯混合密度函数估计的语音分离

In sports biomechanics and physical statistics there are many concepts and principles dealing with physics and mathematics such as free degree, principle of conservation of angular momentum, probability density function, principle of little probability event.

在运动生物力学和体育统计中，有许多物理学及数学的概念和原理，例如自由度、动量矩守恒原理、概率密度函数、小概率事件原理等。

Firstly, the algorithm needs to input parameters for generating test papers. Secondly, it uses probability density function and matrix equation to calculate parameters. Thirdly, it confirms the number of draw-out questions in different types and different difficulty.

该算法首先根据输入的试卷生成参数，利用概率密度函数与矩阵方程计算参数，确定各难度级别中不同题型的试题抽取数量，然后在此基础上，使用基于题型的递归随机分割算法生成试卷。

According to current continuity equations and Poisson's equation, a complete analytic function for recombination probability density, current density and recombination efficiency was given.

－3.根据有机发光器件中激子的解离模型及电流连续性方程和Poisson方程，导出－＿了其复合几率密度、电流密度及复合效率的解析式。

The probability density function of estimating repeatability is derived in this paper, using the technique of probability, statistical test and confidence interval are also discussed in this paper.

本文用概率论的方法导出了重复力估计值的概率分布密度函数，并对重复力的假设检验和区间估计也进行了讨论。

In this paper, the probability density function of sliding velocity for a base sliding rigid body subjected to a Gauss white noise excitation is first derived in virtue of the Fokker-Planck equation.

本文使用Fokker-Planck方程，给出了基底可滑移刚体在高斯白噪声扰动作用下的滑动速度概率密度函数。

The probability density functions ( PDF) for the gas axial and tangential velocities at each measuring location are obtained from the measured data of the instantaneous gas velocity. The results delineate the turbulent fluctuating properties of the reacting flow field.

通过瞬时速度场的测量结果，获得了燃烧室内各测点上气体轴向与切向瞬时速度的概率密度函数（PDF），揭示了热态速度场的湍流脉动特性。

Based on Statistical Theory of Pulse Signal Flow, a statistical model for one-dimension probability density function ( PDF) of electromagnetic interference pulse flow caused by group electromagnetic interference sources is discussed in this paper. This model has universality.

使用脉冲信号流统计理论，建立了由群体电磁干扰源产生的电磁干扰脉冲流的一维概率密度函数（pdf）统计模型，具有普遍性特点。

A study on the transferable probability density function of impact attenuation vibration system

冲击减振系统转移概率密度函数的研究

Space debris delta-velocity probability density function was deduced by NASA's standard breakup model, and time integral algorithm of collision probability between spacecraft and any debris was built.

推导了基于NASA标准解体模型的碎片分离速度概率密度函数，建立了计算航天器与单颗碎片碰撞概率的时间积分算法。

A probability density model for daily solar diffuse radiation

太阳日散射概率密度模型

The Laplace transform method is found as an effective method to solve the integral issue of probability density under complex constraint.

用Laplace变换法有效地解决了复杂约束条件下概率密度函数的积分问题，并给出体系中层数较少时极限分布的表达式。

The joint probability density distribution of crest height and crest period

风浪波高和周期的联合概率密度分布

The pre-knowledge of the probability density function is used in the noise sample's classification, clustering and unsupervised parameter estimation.

通过对噪声样本进行数据挖掘和模式识别，在线学习噪声的实时特性，获得其概率密度函数的先验知识，应用此先验知识进行样本聚类、分类、无监督学习并对噪声参数进行精确估计。

Probability Density of Electrons Inside Quantum Corral on the Surface of Metal

量子围栏中金属表面态电子概率密度分布

As the test scheduling problem has been verified to be NP problem, this dissertation adopts a new optimization algorithm based on probability density distribution called cross-entropy method for test scheduling.

由于测试调度问题已被证明属于NP完全问题，本文采用一种新的基于概率密度分布的优化算法&交叉熵方法，对其进行求解。

The algorithm is based on Bayesian decision machinery, with estimation of the structure from probability density function, for two-class problems. ( 3) The paper gives out a semi-supervised learning algorithm based on FCM.

该算法基于贝叶斯决策理论，通过概率密度函数进行分布估计，对两类别半监督学习问题进行判定。（3）给出了一个基于FCM的半监督学习算法。

To estimate probability density function ( PDF) of the target state based on samples, a new Expectation Conditional Maximization Either ( ECME) algorithm is introduced and embedded in the SPF.

为了根据样本估计目标状态的概率分布，提出了一种新的ECME算法，并嵌入到t-分布粒子滤波器中。

Different methods for time base jitter compensating are analyzed and simulated. On the base of that a new method called improved probability density function method is developed to compensate time base jitter.

其次，对时基抖动的不同补偿方法进行理论分析和仿真研究，在此基础上提出新的时基抖动补偿方法&扩展的概率密度法。

Study on Goodness of fit Method for Probability Density Function of Traffic Flow

基于最佳平方逼近的交通流统计分布密度函数优度拟合方法

The application of probability density registered method to compiling the map of regional groundwater background value

应用概率密度套合法编制区域地下水环境背景值图的探讨

The localization of salient feature points in image is converted into a problem of probability density estimation, the new computational model of visual attention is introduced and combined with the process of Mean-Shift so that the key feature points are produced.

将图像特征显著点的定位转化为概率密度估计问题，引入新的注意计算模型并结合Mean-Shift处理得到关键特征点。

Strategy of selecting points via number theoretical method in probability density evolution analysis of stochastic response of structures

结构随机响应概率密度演化分析的数论选点法

From this expression, the Peak Probability Density Function ( PDF) of echoes in the time gate is conducted by using statistical theory, and has been strong proved by field data.

然后从该式出发，应用统计学原理导出了在整个取样门持续时间内，回波峰值的概率密度函数（PDF），并给出和讨论了现场的骓证结果。

Bayesian network is a powerful knowledge representation for decomposing joint probability ( or probability density ).

贝叶斯网络是用于联合概率 ( 密度 ) 分解及证据传递的有效图形模式.

Probability Density Function Approximation Using Gaussian Mixture Model

利用高斯混合模型实现概率密度函数逼近

Under the Gaussian hypothesis, probability density functions and numerical characters such as mean, variance and hybrid 2nd order moment of the instantaneous polarization projection vector ( IPPV) of TV-EMWs are studied in this paper.

在正态假设下，研究了时变电磁波瞬态极化投影矢量（IPPV）的概率分布和均值、方差、混合二阶矩等数字特征，得到了电磁波IPPV一些重要统计性质。