观测误差

Consider singular growth curve model as follows : Y = ABC + E , where A , C are all known matrices, B is an unknown matrix of regression coefficients , Y is a matrix of observations and E =(1,(2),...

中文摘要：考虑奇异增长曲线模型：Y=ABC+E，其中A、C均为已知矩阵，B是未知回归系数阵，Y为观测资料阵，E=ε_((1)…ε_(n′为随机误差阵，假定Eε_(iε_(i′=∑，i=1，2…n，Eε_(iε_(j′=0，i≠j，这里∑≥0。

Without considering testing error ,we set up a group testing model in the presence of zero observations and derive maximum likelihood estimator and method of moment estimator of parameters.

在不考虑检验误差的情形下，建立一个含零观测值的模型并得到参数的最大概似估计量与动差估计量。

It was observated that the movement of oil drop impacted by air molecule in Millikan experiment. Displacement distribution and measurement error functions accord with gaussian distribution by studying of histogram.

用密立根实验装置，观测油滴在空气分子撞击下运动，通过直方图研究说明位移分布函数φ符合正态分布，测量误差分布也服从正态分布。

A method for separating the same periodical nutation and non—nutation terms from the Z—terms of ILS three group observations is developed.

本文提出了一种从ILS的三组观测Z项中分离相同周期的章动误差项与非章动项的方法。

Meanwhile, new observation operators are designed for routine observational data, and background error covariance is also calculated. Currently, the m3DVAR system is able to assimilate all the conventional observations data, such as sounding, surface and ship data, etc.

重新构造各种观测算子，并考虑了质量场和风场之间的平衡约束关系、背景误差协方差结构，实现对探空、地面资料、船舶报等常规观测的同化。

Also, a method of quasi-stable adjustment and a software system researched and explored by Visual BASIC Language have been used to process the observation data of GPS dam deformation monitoring network..3 A mathematical model of three-dimension combined adjustment with GPS and other surveying data under station orthogonal coordinate system in deformation monitoring networks, has been brought forward.

提出了站心地平坐标系下GPS观测数据与其它地面测量数据三维变形监测网联合平差的数学模型，在数据处理模型中通过参数化的方法消除或减弱垂差和垂直折光的系统误差的影响。

It was the first time to take the maximum permissible error as the major specifications of the crustal deformation observation instrument in compiling the seismological industry standard.

地壳形变观测仪》的编制研究中，第一次提出以"最大允许误差"作为地形变观测仪器的主要技术指标，也是判别倾斜仪是否合格的惟一依据。

Distributing control point used of straight closed traverse and using of distance measurement polar coordinates and near distance high degree level measuring method to do deformation measuring for the plugging water curtain wall.

用直伸闭合导线布设控制点，以测距极坐标和近距高等级水准测量方法对堵水帷幕墙进行变形测量，有利于提高观测精度，能消除横向误差对监测点位精度的影响，精度及效果较

With a radiosonde sounding occuring within 2 hours and 300 km of the ROE as reference, errors are found in the refractivity profiles inverted by this paper and by CDAAC in LT.

以距离该掩星地点300 km以内、观测时间差异2 h以内的无线电探空资料为参照，反演的折射率廓线与CDAAC的折射率廓线在低对流层都存在一定的误差。

The purpose of this study is using linear regression to obtain the relationship between the residual system errors and the distances .

本研究的目的是使用线性回归的方式来求出残留系统误差与距离的关系式，并分别采用间接观测平差、条件带未知数平差与完全最小二乘法来求解，并分析其差异性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。