1) Equivalent weight
等价权
1.
This paper,based on the relationship between the difference of solutions and the estimator of outliers ,derives the influence function of LS estimation which is expressed by the estimator of blunders;according to the principle of equivalent weight,realizes robustifying LS estimation to observation space and design space with the method to limit the estimator of gross errors.
通过对粗差估值加以限制，根据等价权原理，实现ＬＳ估计对观测空间和设计空间的抗差性。
2.
An equivalent weight principle is used in constructing the robust estimator for combined adjustments with various priori pricision and every kinds of observations.
抗差Ｍ估计是使用最广泛、计算较简明的抗差估计法，基于多维Ｍ估计原理，建立了经典测量平差函数模型的抗差解，并推导出相应的误差影响函数；为了使抗差估计适于不同类型以及不同先验精度的各类观测的混合平差，将采用等价权原理构造抗差解式。
3.
By use of the equivalent weight,this method can resist outliers.
提出一种新的基于抗差估计的抗差粒子滤波算法,通过计算粒子等价权,抑制观测值粗差的影响。
2) equivalent weights
等价权
1.
Depend on analyzing the abuse of equivalent weights, a set of self contained theory system on robust estimation based on equivalent variance covariance are established, which include function,equivalent variance covariance function、influence function and breakdown point.
在对现有的基于等价权的稳健估计的弊端进行分析的基础上 ,建立起一套基于调整观测量方差 -协方差阵的稳健最小二乘估计理论 ,包括相关ρ函数、相关φ函数、等价方差 -协方差函数、等价方差 -协方差因子、影响函数、崩溃污染率等。
3) Equivalent weight function
等价权函数
1.
The equivalent weight function in robust estimation is usually constructed by the statistics of normal distribution.
抗差估计等价权函数一般由正态分布统计量构造,其临界值(或称准则)一般由实际经验确定。
2.
Critical values of the equivalent weight function are often fixed in constants in robust estimation.
抗差估计等价权函数中临界值一般定为常数。
3.
The advantage and disadvantage of the existing equivalent weight functions are analyzed.
首先分析了现有几种等价权函数的优缺点,然后以适合于测量领域计算的IGGⅢ方案为基础,利用服从于t分布的学生化残差构造等价权函数来进行抗差估计。
4) equivalent weight matrix
等价权矩阵
1.
The corresponding elements of the equivalent weight matrix constructed by the residuals and some chosen weight fu.
本文提出了一种网络蠕虫感染率的估计方法,首先利用抗差估计原理构造了基于原始观测量的算法模型,然后根据权函数和残差区间给出了抗差等价权矩阵,分析了误差影响及验后精度估计,最后进行了仿真实验。
5) Principle of equivalent weight
等价权原理
6) Generalized Equivalent Weight
广义等价权
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