查询词典 theoretical probability

The noise frequency modulation signal was particularly analyzed. The Fokker-Planck equation of noise frequency modulation was presented and the Motion-Group Fourier Transform was used by converting the partial differential equation into the variable coefficient homogenous linear differential equations. Then the solutions were given by using the peano-baker series. So the probability density function of noise frequency modulation in the filter was given. On the basis of the probability density function the stochastic resonance of noise frequency modulation signal is analyzed.

首先建立了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后所满足的福克尔－普朗克方程，然后利用群移傅立叶变换（Motion-Group Fourier Transform，MGFT）将此偏微分方程化成了变系数齐次线性微分方程组，并利用Peano-Baker级数法给出了该方程组的解，最后得到了噪声调频干扰信号通过脉冲压缩雷达中频滤波器后的概率密度函数，在此基础上研究了噪声调频干扰信号造成的随机共振现象。

The corresponding coefficient of deviation mean Φp and transcendental probability P are evaluated under different skewness coefficient Cs by deducing Pearson Type Ⅲ probability density distribution function according to the requirement of Military Specification Airplane Strength and Rigidity.

本文按军用飞机强度和刚度规范中规定的要求，通过对皮尔逊Ⅲ型概率密度分布函数的推导，完成了在不同偏态系数Cs下的离均系数Φp和超越概率P的对应数值编程计算，并得到了相应的计算结果。

I have calculated the species diversity for 3 layers (i.e. tree layer, shrub layer and herb layer) by means of various biodiversity index formulas and analyzed the relative species abundance using 9 models of the probability density distribution functions, such as, 3 Distribution (or Beta Distribution, Weibull Distribution, Lognormal Distribution, Poisson Distribution, Binomial Distribution, Negative Binomial Distribution ,Geometric Distribution, etc.. chi-square analyses were conducted on species distribution by using the chi-square test formulated by Pearson to test which distribution function is better, the result of chi square test made it possible to reject the other 8 distribution functions, theβdistribution function performs better than other probability density functions, it has a very close approximation, which can be used for the description of relative abundances of species in forest communities in this data set.

在相对多度研究上选用了九种概率分布模型，这九种概率密度分布函数依次为：贝塔分布、Weibull分布、对数正态分布、泊松分布、二项分布、负二项分布、几何分布、对数分布和奈曼A型分布，并进行了严格的卡方检验，结果表明：其它八种分布均被遭到拒绝，只有贝塔分布获得了通过，且拟合的结果非常理想。

Using normal distribution transform probability model to represent a laser range scan.Not need features corresponded,but transform the discrete scan date to the piecewise continuous and differentiable probability density function,and using Newton's algorithm to optimize scan matching,so can build the 2D global map.

利用正态分布转换概率模型来表示激光扫描，不需利用特征对应，而是通过将扫描得到的离散数据点转换成分段连续可微的概率密度函数，并利用牛顿优化算法来进行扫描匹配，从而建立2维全局地图。

In the process of recognition, the prior probability is supposed to be the same, the posterior probability is calculated according to GMM, and then the instrument class is determined.

乐器识别在科学研究和实际应用中有重要意义。目前人们对于音频有不同的认识，还没有一种成熟的理论用于研究人类如何识别声源。

Finally, the impact of loading on the probability of occurring of cascading failures is studied, and a phenomenon that power systems with more uniform loading have lower probability of occurring of cascading failures is found.

分析了负载情况对系统发生连锁故障概率的影响，发现系统负载较均匀时发生连锁故障的概率将大大降低。

On the other hand, in terms of the above,"superposition principle of probability amplitudes" in quantum mechanics ought to be indicated as "probability amplitudes is independent of passage conditions."

另一方面，按照上面的用语，量子力学中的"概率幅的迭加原理"应表成"概率幅不依赖于通道条件"。

Most arithmetics of data fusion have its default in the processing to uncertain and unintegrity data. The method of probability and statistics is difficult to obtain the prior probability of the occurrence.

数据融合的方法很多，但现有算法都有各自的优缺点，因而也都有各自的适用范围，到目前为止尚未形成统一的算法理论。

The famous probabilist Kolmogorov from previous Soviet Union said: Only probability limit theory can reveal the epistemological value of probability.

前苏联著名的概率学家Kolmogorov曾说过："概率论的价值只有通过极限定理才能被揭示，没有极限定理就不可能去理解概率论中的基本概念的真正含义。"

In consideration of kill probability and effectiveness of missile weapon system, the thesis researches on kill probability curve and effectiveness curve in attack area.

考虑到导弹武器系统的杀伤概率值和效能值的问题，对在导弹的杀伤区内画出等杀伤概率曲线和等效能曲线进行了研究。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。