probability density function (pdf) meaning in English
概率密度函数
Examples
- 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
窄带条件下,雷达目标可以看作是一个点目标,假设目标和杂波都服从零均值的复高斯分布,目标为慢起伏。 - 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温度资料，拟合了土壤湿度和地表温度空间分布的概率分布密度函数( pdf ) ，并将拟合结果与反演值进行了统计检验。 - 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
含噪讯号强度之累积机率分布及机率密度特性，则依强度递增排序法，换算成累积百分比分布及百分比密度近似之。 - Kde is a non - parametric method which is capable of extracting the population ' s probability density function ( pdf ) based on data sample only without any a prior knowledge about the statistic properties of the data regime . in this thesis , it is conducted the implementation of the kde for monitoring the performance of batch production processes
用核函数法概率密度估计对间歇生产过程进行实时状态监测的主要优点是它属于非参数法概率密度估计的一种，不需要数据总体的任何先验知识或是假设而直接基于实测数据样本求出总体的概率分布密度函数，摆脱了对不可靠的先验知识的依赖。 - Third , based on the parameterization of the related land surface characteristics , using the probability density functions ( pdf ) and the grossly dynamic resistance method , a statistical - dynamical parameterization scheme is put forward . the mean evapotranspiration flux of lower reaches of the yangtze river is calculated by tins scheme and the results are compared with the formers " conclusions . finally , the calculated results by the statistical - dynamical parameterization scheme are compared with the mosaic method
第三，在进行了有关地表特征物理量的参数化后，结合拟合的概率密度函数，根据总体动力掌阻抗法，提出了一种考虑网格区整体非均匀性的统计-动力参数化方案，并采用这种方案计算了长江三角洲地区的平均蒸发散通量，计算结果与以前研究者的研究成果进行了比较验证。
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