The state is markov process in appropriate expanded space and the accurate stationary solution, which is the probability density function of velocity response, can be obtained by solving its corresponding fpk equation 在適當(dāng)擴(kuò)大了的空間中,其狀態(tài)是馬爾可夫的,通過求解對(duì)應(yīng)的fpk方程可得到精確穩(wěn)態(tài)解,即速度響應(yīng)的概率密度函數(shù)。
The ica-based method without assumption that data follow normal distribution, can easily calculate the joint probability density function of independent components ( ics ), because each of ics statistically independent 采用獨(dú)立分量分析的方法可以避免數(shù)據(jù)服從正態(tài)分布的假定,且由于各個(gè)獨(dú)立成分之間統(tǒng)計(jì)獨(dú)立,其聯(lián)合概率密度函數(shù)可以很方便的求取。
Using conception of relative rate of change, a definition of probability density function is given based on the class of differentiable monotone function which is bounded on domain of definition, calculation and properties of the mathematical expectation are discussed 摘要對(duì)一類單調(diào)可微的有界函數(shù),利用相對(duì)變化率的概念,定義了一種由該函數(shù)生成的概率密度函數(shù)。
A new concept of the equivalent process capability index and its estimating method are provided at ppm level . a probability distribution family named pearson distribution is introduced and its seven types of probability density function are deeply analyzed 引入了一種名為皮爾遜(pearson)分布的概率分布族并對(duì)其七種不同類型的概率密度函數(shù)作了深入的分析與研究。
All numerical experiments are passed the statistically confidential test second, on the basis of the retrieved data of soil water content and land surface temperature, the probability density functions ( pdf ) of them fitted 其次,利用反演的土壤水分和地表溫度資料,擬合了土壤濕度和地表溫度空間分布的概率分布密度函數(shù)(pdf),并將擬合結(jié)果與反演值進(jìn)行了統(tǒng)計(jì)檢驗(yàn)。
The probability density function of net rainfall relative errors, flood peak discharge relative errors and the time error of the forecasted flood peak are calculated by the model developed 通過建立洪水預(yù)報(bào)誤差分布的最大摘模型,計(jì)算出9座典型水庫(kù)洪水預(yù)報(bào)的凈雨相對(duì)誤差、洪峰流量相對(duì)誤差和峰現(xiàn)時(shí)間預(yù)報(bào)誤差的概率密度函數(shù),并將其概率密度函數(shù)曲線與正態(tài)分布曲線進(jìn)行比較。
A verification technique, which obtains unbiased estimator for the means and variance of several global and local features is presented and a matching way after acquiring the threshold by probability density function is achieved 摘要論述了在獲得在線手寫簽名的曲線的一些局部和全局特征的平均值和方差的無(wú)偏估計(jì)的基礎(chǔ)上,通過概率密度函數(shù)進(jìn)而獲取閾值進(jìn)行匹配的鑒別方法。
This dissertation reviewed the history and current status of the research of dielectric window breakdown, investigating the basic idea and application of monte carlo method, and sought a best random sample for different probability density function 本文回顧了介質(zhì)窗擊穿研究的歷史與現(xiàn)狀,探討了蒙特卡羅方法的基本思想和應(yīng)用技巧,針對(duì)不同概率密度函數(shù)的性質(zhì)尋求其最優(yōu)的抽樣方法。
As for the m-ary psk signals, the differential phase peaks at the transients are used . the pdf ( probability density function ) of the differential phase peaks of m-ary psk are the mean of m-1 pdfs of m-1 phase peaks 由于進(jìn)制的數(shù)字調(diào)相信號(hào)每個(gè)子碼間具有個(gè)相位突變,其相位突變的峰值滿足一個(gè)概率密度為的分布,若信號(hào)為元psk信號(hào),則相位突變峰值的概率密度函數(shù)就是個(gè)概率密度之和的平均。
The cumulative probability distribution ( cpd ) and probability density function ( pdf ) of the magnitude of signals with noise are approximated by the cumulate percentage distribution ( cpd ) and percentage density ( pcd ) respectively by sorting and discretizing . the simulation verfies the following 含噪訊號(hào)強(qiáng)度之累積機(jī)率分布及機(jī)率密度特性,則依強(qiáng)度遞增排序法,換算成累積百分比分布及百分比密度近似之。