joint density function
英 [dʒɔɪnt ˈdensəti ˈfʌŋkʃn]
美 [dʒɔɪnt ˈdensəti ˈfʌŋkʃn]
联合密度函数
双语例句
- Analytical Method of Joint Probability Density Function of Wind Speed and Direction from Parent Population Full-rate full-diversity quasi-orthogonal space-time block codes and performance analysis
总体样本风速风向联合概率分析方法满速率全分集的准正交空时分组码及性能分析 - The joint probability density function of distances is derived for the convenience of object recognition when the distance is known.
在已知距离时，为了便于识别目标，导出了投影距离的密度函数。 - A joint proBaBility density function
一个连合概率密度函数 - The joint probability density function for nonlinear dynamic stochastic response of structures
结构动力非线性随机反应的联合概率分布 - Their joint density of states has been computed by tetrahedron method and there fore imaginary part of dielectronic function e,( co) of such systems has been obtained.
用四面体方法计算了该系统的联合态密度，由此计算了该系统的光学介电函数应部ε2（ω）。 - For atmosphere turbulence and speckles, their separate and joint effects are researched by using the probability density function and variance of the laser signal intensity;
对于大气湍流和目标斑纹，以光强的概率密度函数和归一化方差的形式研究了二者单独作用以及联合作用对激光回波强度的影响； - The failure probability of a system can be expressed as an integral of the joint probability density function within the failure domain defined by the limit state functions of the system. Generally, it is very difficult to solve this integral directly.
结构体系的失效概率数学上可以表示为结构体系失效域上联合概率密度函数的积分，一般情况下很难直接积分求解。 - Solution by Jacobi determinant, the joint probability density function of stochastic partial elasticity of total cost related to random purchase quantity and purchase period is obtained.
通过求解雅各比行列式，给出了总费用对随机采购量和随机采购周期的随机局部弹性的联合概率密度。 - The laminar flamelet model in combination with joint probability density function ( PDF) transport equation of mixture fraction and turbulence frequency is used to simulate fluctuating behavior of radiative source term in turbulent jet diffusion flames of hydrogen.
采用κ-ε湍流模型、标量联合的概率密度函数（PDF）输运方程和层流火焰面模型相结合，模拟氢气自由扩散火焰中辐射源项湍流脉动特征。 - In order to evaluate the effect of mean stress, the joint probability density function ( pdf) of rainflow ranges and means is required.
若考虑雨流循环均值的影响，在时域计算中可以很方便地实现，但在频域中则必须得到雨流循环均值-幅值二维联合概率密度。 - A length scale is introduced by a two-point joint probability density function, to account for the evolutions of the conditional diffusion.
该方法考虑两点联合概率密度函数方程，引入空间特征尺度，因此解决了以往映射封闭方法中分子扩散速率无法确定的问题。 - In independent flat Rayleigh fading channels, the paper presented a method that evaluated the order coefficient of the joint probability density function ( PDF) of the sorted channels gain magnitude ( CGM).
在独立平坦的瑞利衰落信道中，提出一种确定排序信道衰落因子大小的联合概率密度函数（PDF）序系数的方法。 - For the joint density function of 2-D continuous random variables, a new function can be obtained by upper limit-variable integral, and then, by normalization of the new function according to the property of density functions, a general marginal density function was constructed.
对二维连续型随机变量的联合密度函数，在一定要求下变上限积分得到新函数，依据密度函数性质进行规范化，从而构造出一个广义的边缘密度函数。 - It is established on the expected value of the theoretical spatial spectrum over the joint posterior density function of the array output signal and noise parameters.
它是建立在阵列输出信号和噪声参数联合后验概率密度基础上的空间谱估计。 - Then the stationary joint probability density, the conditional reliability function, the mean first-passage time of the optimally controlled system are obtained from solving the reduced FPK equation, the backward Kolmogorov equation and the Pontryagin equation, respectively of fully averaged systems.
求解与之相应的后向Kolmogorov方程得最优控制系统的条件可靠性函数，进而求得首次穿越时间的条件概率密度；求解与之相应的Pontryagin方程得最优控制系统的平均首次穿越时间（寿命）。 - The Wiener filter is a classical linear optimal filter, which is interpreted in another view. We point out that when the joint probability density function ( PDF) of the observed signal and desired signal is Gaussian, the Wiener filter is a real optimal filter.
维纳滤波器是一种经典的线性统计滤波器，我们从最优滤波器的角度重新解释了维纳滤波器，指出：当滤波器的输入信号与期望信号是联合高斯分布时，维纳滤波器是真正的最优滤波器。 - By means of the equivalent nonlinear system method, the analytical solution of the joint probability density function of steady-state responses of Coulomb sliding friction rigid structures to vertical Gaussian white noises is derived.
运用等效非线性系统法推导了库伦摩擦刚性滑移结构在竖向高斯白噪声地面作用下响应的稳态合概率密度函数的解析解。 - Study on the Joint Probability Density Function between the Wind Velocity and Direction in Shanghai District
上海地区风速风向联合概率密度函数的研究 - Methods After analysis and generalization the traditional similarity measure of correlation coefficient, propose one new method based joint possibility density function to measure similarity between two images obtained by multisensor, and then test its effect.
方法对传统的相关系数相似性量度进行深入分析，通过对其推广，提出一种也适用于异质遥感图像相似性度量的基于联合概率的方法，并通过具体的图像进行实验验证。 - After putting distribution of joint trace length forward to analyze the formation probability, we could reckon formation probability for block of different size, and achieve density function of formation probability.
将节理迹长的分布用于分析块体的形成机率，计算不同大小块体的形成概率，得出块体形成概率的密度函数。 - Practical algorithm for joint probability density function of rainflow ranges and means
雨流循环均值-幅值二维联合概率密度的实用算法 - We point out that when the joint probability density function ( PDF) of the observed signal and desired signal is Gaussian, the Wiener filter is a real optimal filter.
然而，在实际情况中，输入信号与期望信号的联合概率密度分布往往不是高斯的，这时，维纳滤波器并不是最优滤波器。 - In the non-parametric method, the length of the time window that used to estimate joint density function is selected subjectively by researchers and the different select influences the stability of the result.
非参数方法中用于估计联合密度函数时样本的时间窗长度由研究人员主观设定，不同的设定对结果的稳定性影响很大。 - We set up the evolution equations for joint density function of the mapping state and queueing length.
对分形排队模型，我们建立了映射状态和队长的联合密度演化方程，利用数值计算和数值仿真模拟的方法对方程的解作了初步的探索性研究。 - The method of computing reliability index was derived by the method of joint integral in probability density function and integral in functional density.
推导了利用概率密度函数联合积分法和功能密度函数积分法求解可靠度的方法。 - The joint default distribution function and the density function of the two clients are deduced under the physical measurement and the neutral-risk measurement.
数学推导出了推导出了两个贷款客户在真实测度和风险中性测度下的联合违约分布和密度函数，并推导出了定价模型，解释了模型的经济含义。 - Therefore, this paper use time-varing Copula function to estimate the joint density function of ratios, which is the return of the spot and futures. And then use this joint density function with the numerical method to estimate the minimum lower partial moment hedge ratios.
因此，本文提出使用具有随时间变化的相关系数Copula函数来估计现货与期货收益率的联合密度函数，然后使用这个联合密度函数、通过数值方法计算最小下偏矩套期保值比率的新方法。