方向分布 meaning in English
directional distribution
Examples
- 3 . the uneven distortion of contact finger is due to the uneven distribution of cr along circle of the contact during infiltration
( 3 )触指不均匀变形是由于在熔渗过程中cr元素偏析上浮，在圆周方向分布不均而致。 - The joint probability density distribution ( pdf ) of the velocity fluctuations falls along the directions of - u + v and + w - v especially for fine particles
联合概率密度主要沿一u v和十u ? v方向分布，粒径较小的颗粒更为明显。 - This thesis mainly concentrates on the orientations of the spin vectors ( svs ) with different samples of the field galaxies in the local supercluster ( lsc ) and of the galaxies in the virgo cluster , with the context of the origin and formation of galaxies and clusters . we also statistically studied the intrinsic flatness of the disk galaxies
本文主要对本超星系团中的场星系、不同样本来源的virgo团成员星系的旋转矢量方向分布情况进行统计分析，以期寻找星系或星系团等宇宙大尺度结构的形成和起源信息，并给已有的或新的星系或星系团形成和起源理论提供观测依据和实验佐证。 - Then , base on the determine channel modeling methods , we present a frequency - selective mimo fading channel with von mises probability density function , which is used to characterize non - uniform angle - of - arrival caused by non - isotropic scattering . then we analyze partial cross correlation function of proposed model and proved the model theoretically
然后,通过对其它多入多出信道模型的分析和对比,并基于确定性信道建模方法,建立了一种通用的频率选择性多入多出衰落信道模型,借助“ vonmises ”概率密度函数,以描述非均匀散射体导致的非均匀本地来波方向分布。 - The results show that of the resolution of the directional distribution is higher the mbdm than the mmlm and while of the resolution of the reflection coefficient higher the mmlm than the mbdm . the two methods are sensitive to the array disposal of wave gauges and the resolution power of t he analyzing results by the polygon array is better , while the linear array worse . the wave gauge number of array and the distance between the array and the reflector can influence strongly the resolution power of the analyzing results
结果表明，对于波浪方向分布的分析， mbdm的分辨力高于mmlm ，对于反射系数方向分布的估算， mmlm优于mbdm ；仪器阵列的布置、仪器个数以及阵列与反射面的最近距离对两种方法分析结果的分辨力影响较大； mmlm的收敛速度快于mbdm ，计算的稳定性优于mbdm ； mbdm的分辨力受超参数选择的影响。