A review of robust estimation methods applied in surveying.

Banas, Marek

doi:10.7494/geom.2012.6.4.13

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…Polynomial optimisation was performed with the use of one of the robust estimation methods -the Danish method. It gives a better t than the least square adjustment method (Banaś, 2012;Borowski and Banaś, 2018). As a result, the distribution of height shifts improved (Table 3) (Borowski, 2017).…”

Section: The Description Of the Procedures -An Example Of Kętrzyn Distmentioning

confidence: 99%

The conversion of heights of the benchmarks of the detailed vertical reference network into the PL-EVRF2007-NH frame

Borowski

Banasik

2020

Reports on Geodesy and Geoinformatics

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The paper describes the problem of conversion of heights to the European Vertical Reference Frame 2007 for Poland (PL-EVRF2007-NH). The subject of the study is height data, and especially the detailed vertical reference network. The aim of the article is to present an alternative method of conversion to the one recommended by the Polish Head Office of Geodesy and Cartography. The proposed approach is characterised by a low implementation cost while maintaining the required accuracy.The publication is illustrated by the case of Kętrzyn district (in the north-east part of Poland). The local reference network was converted from Kronstad’60 to PL-EVRF2007-NH in 2017.

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Section: The Description Of the Procedures -An Example Of Kętrzyn Distmentioning

confidence: 99%

The conversion of heights of the benchmarks of the detailed vertical reference network into the PL-EVRF2007-NH frame

Borowski

Banasik

2020

Reports on Geodesy and Geoinformatics

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“…Therefore, a method for automating the task of comparing spools with the use of isometric transformation and robust estimation has been proposed to replace traditional computational methods based on repeated translations and rotations of the spool model. Both isometric transformation and robust estimation methods are known and widely used in various tasks in the field of surveying engineering (e.g., [1,2,5,[11][12][13]); however, the authors did not find scientific publications or practical implementation of the comparison process of spools using both methods. Isometric transformation (without changing the scale) allows recalculating a set of points with XYZ coordinates from the input to the output coordinate system by combining translations and rotations.…”

Section: Research Problemmentioning

confidence: 99%

Application of isometric transformation and robust estimation to compare the measurement results of steel pipe spools

et al. 2020

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Production of prefabricated pipe spools for the needs of the oil and gas industry requires precise determination of their shape and dimensions. The crucial moment of production is to measure the spool being built, compare it with the design and define the geometry corrections that should be applied at the construction stage. At present, the comparison of spools is usually done in a manual manner in a CAD program or other software dedicated for this purpose and is implemented by combining variously defined translations and rotations. This approach is time-consuming and the results strongly depend on the survey engineer’s experience. In this article, a method of comparing the shape of two spools, based on isometric transformation and robust estimation, has been proposed. This method can be used to automate the comparison process. In standard approach, applied by both design engineers and assemblers, spools are described by a set of coordinates and, in the case of flanges, by sets of appropriately defined angular values. A method of flange description suitable for use in the isometric transformation process has been proposed, and potential problems that may appear at the implementation stage of the algorithm have been discussed. The proposed method makes it possible to determine the elements of a spool that do not fit into the design project in a way that allows minimizing the number of corrections at the construction stage.

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Fitting a Precise Levelling Network to Control Points Using a Modified Robust Huber’s Mean Error Function

et al. 2017

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A review of robust estimation methods applied in surveying.

Cited by 5 publications

References 3 publications

The conversion of heights of the benchmarks of the detailed vertical reference network into the PL-EVRF2007-NH frame

The conversion of heights of the benchmarks of the detailed vertical reference network into the PL-EVRF2007-NH frame

Application of isometric transformation and robust estimation to compare the measurement results of steel pipe spools

Fitting a Precise Levelling Network to Control Points Using a Modified Robust Huber’s Mean Error Function

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