Effects of Parameters of Weight Function for Blunder Detection by the Recursive Weighted Least Squares Method

Wang Renxiang

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Volume 13 Issue 4

Apr. 1988

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Article Navigation > Geomatics and Information Science of Wuhan University > 1988 > 13(4): 42-50

Wang Renxiang. Effects of Parameters of Weight Function for Blunder Detection by the Recursive Weighted Least Squares Method[J]. Geomatics and Information Science of Wuhan University, 1988, 13(4): 42-50.

Citation:

Wang Renxiang. Effects of Parameters of Weight Function for Blunder Detection by the Recursive Weighted Least Squares Method[J]. Geomatics and Information Science of Wuhan University, 1988, 13(4): 42-50.

Effects of Parameters of Weight Function for Blunder Detection by the Recursive Weighted Least Squares Method

Wang Renxiang

Xi'an Research Institute of Surveying and Mapping

Received Date: 1988-09-16
Publish Date: 1988-04-05

Abstract

Based upon an analysis of the relationship between patrameters of the weight function of the negative power form and the capability of locating blunders, it is found necessery to handle separately the choice of the basic variable of the weight function and the test value for statistical tests. The result of investigation shows that the so-called "enlarged residual" should be used as the basic variable of the weight function for the first two iterations, and it is better to choose the residual itself for the following. The "Standardized residual" is used as the statistical test value, while the power value of the weight function is taken from - 2.5 to - 4.0.
- location of blunders,
- recursive weighted least squares method,
- weight function,
- standardized residuals
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Parameters of Weight Function for Blunder Detection by the Recursive Weighted Least Squares Method

Wang Renxiang

Xi'an Research Institute of Surveying and Mapping

Received Date: 1988-09-16
Publish Date: 1988-04-05

Key words:

location of blunders /
recursive weighted least squares method /
weight function /
standardized residuals

Abstract: Based upon an analysis of the relationship between patrameters of the weight function of the negative power form and the capability of locating blunders, it is found necessery to handle separately the choice of the basic variable of the weight function and the test value for statistical tests. The result of investigation shows that the so-called "enlarged residual" should be used as the basic variable of the weight function for the first two iterations, and it is better to choose the residual itself for the following. The "Standardized residual" is used as the statistical test value, while the power value of the weight function is taken from - 2.5 to - 4.0.

Citation: