Experimental investigation of multi-scale eddy structures'intermittency in turbulent flow using probability density function of wavelet coefficients 用局部平均速度結(jié)構(gòu)函數(shù)檢測(cè)湍流邊界層多尺度相干結(jié)構(gòu)
We can apply many good qualities of wavelet orthogonal series to estimate the condition probability density function of hmm's 我們利用小波正交級(jí)數(shù)的很多良好性質(zhì)來(lái)估計(jì)隱馬爾科夫模型中的條件概率密度函數(shù)。
For many practiced instances, the type of the probability density function is unknown . so density estimation is nonparametric estimation 對(duì)于很多實(shí)際情況,hmm密度函數(shù)所屬類型并不知道,此時(shí)的密度估計(jì)就是典型的非參數(shù)估計(jì)問(wèn)題。
The probability model for the initial time of corrosion is founded; and the distribution type and the probability density function for the initial time of corrosion are obtained 通過(guò)建立腐蝕初始時(shí)間的概率模型,得出腐蝕初始時(shí)間的分布規(guī)律和概率密度函數(shù)。
From langevin equation, the stochastic resonance characteristics of bistable system were investigated, including the probability density function and other character numbers 通過(guò)朗之萬(wàn)(langevin)方程,本文詳細(xì)研究了雙穩(wěn)態(tài)系統(tǒng)的隨機(jī)共振特性,得出系統(tǒng)穩(wěn)態(tài)輸出的概率密度分布函數(shù)及其數(shù)字特征。
As an example, the ratios of the experimental value to the analytical value of ultimate strain of confined concrete are taken as random variables whose probability density function is estimated with the proposed method 以約束混凝土極限應(yīng)變的試驗(yàn)與理論預(yù)測(cè)值之比值為例,進(jìn)行了概率密度函數(shù)估計(jì)。
Bayesian method is used to calculate the posterior probability density function of the parameters for the model, and then monte carlo method is used to sample the model for getting the estimated values of the parameters 采用貝葉斯方法計(jì)算出模型參數(shù)的后驗(yàn)概率密度函數(shù),通過(guò)蒙特卡羅方法時(shí)其進(jìn)行采樣來(lái)獲得參數(shù)的佑計(jì)值。
When the radar is narrow band, radar target is studies as a point target . target and clutter are modeled as having a zero-mean complex gaussian probability density function ( pdf ) . target is assumed as slowly-fluctuant 窄帶條件下,雷達(dá)目標(biāo)可以看作是一個(gè)點(diǎn)目標(biāo),假設(shè)目標(biāo)和雜波都服從零均值的復(fù)高斯分布,目標(biāo)為慢起伏。
The instantaneous probability density function of the virtual stochastic process is evaluated, and then the probability density function of the basic random variable is obtained by employing the independent random samples 利用獨(dú)立隨機(jī)抽樣的樣本值,即可獲取虛擬隨機(jī)過(guò)程的瞬時(shí)概率密度函數(shù),進(jìn)而獲得隨機(jī)變量的概率密度函數(shù)估計(jì)。
The instantaneous probability density function of the virtual stochastic process is evaluated, and then the probability density function of the basic random variable is obtained by employing the independent random samples 利用獨(dú)立隨機(jī)抽樣的樣本值,即可獲取虛擬隨機(jī)過(guò)程的瞬時(shí)概率密度函數(shù),進(jìn)而獲得隨機(jī)變量的概率密度函數(shù)估計(jì)。