观测误差

The influence of speed estimation error to flux observation was analyzed, and feedback matrix was calculated based on the analysis.

分析了速度估计误差对磁链观测影响，并以此为基础进行反馈矩阵的计算。

The result of computation shows that the error of observation Point is within 0.045mm.

推导和计算结果说明观测点位中误差可以达到±0.45毫米以内。

Data analysis adopts a comparatively "loose, informal and ad hoc" method and emphasizes the error resisting capability of the observation data.

数据分析是采取一种比较"宽松的、非正式的、特别的"方法，强调对观测数据误差的抗干扰能力。

The main contents are as follows.1. Method that controls quality of field observation values of unbonded elastic wire resistance type meters is studied. Methods that examine system error of different types in observation values are discussed.

主要研究内容如下：(1)研究了差动电阻式仪器现场观测值的质量控制方法；探讨了对监测数据中不同类型的系统误差进行检验的控制图法和连检定法。

Of or relating to experimental error that increases in magnitude with each successive measurement .

测量误差：观测到的变量与多元回归方程中的变量之间的差。。。。

Now the controllability theory in linear systems over the field R of real numbers has been heavily studied. This theory is efficacious for analyzing the characters which are determined by the value of physical parameters and system structure, nevertheless a practical system has a definite structure and has approximate, even unknown parameter sometimes because of a limit to experiment conditions, or a limit to making technology, the errors of observation. It is inconvenience for a linear system over the field R of real numbers to analyze the structure characters of a physical system, such as structural controllability.

目前，实数域上的系统的完全能控性理论研究已经很成熟了，它用于分析系统结构和物理参量的值共同决定的那些性能是有效的，然而，在工程中，由于实验条件或者制造工艺上的限制和观测上的误差，以及人为地对数据的近似处理，一个实际系统往往其结构是确定的，而参数只是近似的甚至未知的，实数域上的系统不便于分析物理系统的结构性质，如结构能控性。

In order to make good use of the historical observational data,this paper suggests that the forecasting problem should be regarded as an inverse problem rather than an initial value problem.

进一步论证了数值模式的误差信息，也或多或少的隐藏在过去的历史数据中，为了充分使用过去的观测数据，本文建议改变问题的提法，不提成初值问题，提成反问题。

According to the basic principle of telluric current prospecting and general formula of derived subsurface leakage, three dimensional distribution of relative errors about the earth resistivity and plane isopleth map were put forward,with the maximum value of leakage current allowable by" The Technical Specification on Geoelectric Observations".

根据电法勘探的基本原理。参考已推导出的线对地漏电的基本公式。给出了《地电观测技术规范》允许漏电电流最大值时的电阻率相对误差三维分布图及平面等值线图，并讨论了其分布特征

By employing multi-dimensional analysis and matrix algebra, the generation and evolution of measurement uncertainties are explicitly formulated, as well as their influence to motion estimation.

利用多元分析和矩阵代数等有力的数学工具，我们定量描述视觉系统对环境观测过程中测量误差的生成、传播及其对运动估计的影响。

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),... is matrix of random errors .

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。

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。