Procedure for transforming ETRS/ITRS into a locally deformed national reference system

IF 2.5 Q2 REMOTE SENSING

Applied Geomatics Pub Date : 2026-09-16 DOI:10.1007/s12518-026-00803-1

Jakub Kostelecky

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引用次数: 0

Abstract

With the intensive use of Global Navigation Satellite Systems (GNSS) methods in surveying, the transformation of measurement coordinates from geocentric reference coordinate systems to national reference coordinate systems is an urgent issue. If the national system exhibits large local distortions, it is necessary to determine local transformation parameters, which leads to ambiguity, or to apply a distortion grid in which it is interpolated. To define the distortion grid, a procedure is proposed using a network of triangles between unevenly spaced identical points, and the most suitable method is to use a 2D 4-parameter transformation in individual triangles with Jung’s transformation of residual deviations. At the same time, an optimal method of interpolation and distortion grid step is proposed. The proposed procedure was tested on a part of the Czech Republic with local deformations of the S-JTSK (System of the Unified Trigonometric Cadastral Network) national reference system, and a mean error of 3 mm was achieved on identical points and 8 mm on check points. Compared to the original procedure, the accuracy was improved by 38%.

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将ETRS/ITRS转换为局部变形的国家参考系统的程序

随着全球卫星导航系统（GNSS）方法在测量中的广泛应用，测量坐标从地心参考坐标系到国家参考坐标系的转换是一个迫切需要解决的问题。如果国家系统显示出较大的局部扭曲，则有必要确定局部转换参数，这将导致歧义，或者应用一个扭曲网格，在其中进行插值。为了定义畸变网格，提出了一种利用不均匀间隔的相同点之间的三角形网络的方法，最合适的方法是在单个三角形中使用二维四参数变换和残差的Jung变换。同时，提出了一种优化的插值和畸变网格步长方法。在捷克共和国的一部分地区对S-JTSK（统一三角地籍网系统）国家参考系统的局部变形进行了测试，相同点的平均误差为3 mm，检查点的平均误差为8 mm。与原始方法相比，准确度提高了38%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Geomatics REMOTE SENSING-

CiteScore

5.40

自引率

3.70%

发文量

期刊介绍： Applied Geomatics (AGMJ) is the official journal of SIFET the Italian Society of Photogrammetry and Topography and covers all aspects and information on scientific and technical advances in the geomatics sciences. The Journal publishes innovative contributions in geomatics applications ranging from the integration of instruments, methodologies and technologies and their use in the environmental sciences, engineering and other natural sciences. The areas of interest include many research fields such as: remote sensing, close range and videometric photogrammetry, image analysis, digital mapping, land and geographic information systems, geographic information science, integrated geodesy, spatial data analysis, heritage recording; network adjustment and numerical processes. Furthermore, Applied Geomatics is open to articles from all areas of deformation measurements and analysis, structural engineering, mechanical engineering and all trends in earth and planetary survey science and space technology. The Journal also contains notices of conferences and international workshops, industry news, and information on new products. It provides a useful forum for professional and academic scientists involved in geomatics science and technology. Information on Open Research Funding and Support may be found here: https://www.springernature.com/gp/open-research/institutional-agreements