Application of Least Squares with Conditional Equations Method for Railway Track Inventory Using GNSS Observations
Krzysztof Czaplewski,
Zbigniew Wisniewski,
Cezary Specht,
Andrzej Wilk,
Wladyslaw Koc,
Krzysztof Karwowski,
Jacek Skibicki,
Paweł Dabrowski,
Bartosz Czaplewski,
Mariusz Specht,
Piotr Chrostowski,
Jacek Szmaglinski,
Slawomir Judek,
Slawomir Grulkowski,
Roksana Licow
Affiliations
Krzysztof Czaplewski
Department of Geodesy and Oceanography, Faculty of Navigation, Gdynia Maritime University, 81-374 Gdynia, Poland
Zbigniew Wisniewski
Department of Geodesy, Faculty of Geoengineering, University of Warmia and Mazury, 10-719 Olsztyn, Poland
Cezary Specht
Department of Geodesy and Oceanography, Faculty of Navigation, Gdynia Maritime University, 81-374 Gdynia, Poland
Andrzej Wilk
Department of Electrified Transportation, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Wladyslaw Koc
Department of Electrified Transportation, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Krzysztof Karwowski
Department of Electrified Transportation, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Jacek Skibicki
Department of Electrified Transportation, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Paweł Dabrowski
Department of Geodesy and Oceanography, Faculty of Navigation, Gdynia Maritime University, 81-374 Gdynia, Poland
Bartosz Czaplewski
Department of Teleinformation Networks, Faculty of Electronics, Telecommunications and Informatics, Gdansk University of Technology, 80-233 Gdansk, Poland
Mariusz Specht
Department of Transport and Logistics, Faculty of Navigation, Gdynia Maritime University, 81-225 Gdynia, Poland
Piotr Chrostowski
Department of Rail Transportation and Bridges, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Jacek Szmaglinski
Department of Rail Transportation and Bridges, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Slawomir Judek
Department of Electrified Transportation, Faculty of Electrical and Control Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Slawomir Grulkowski
Department of Rail Transportation and Bridges, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Roksana Licow
Department of Rail Transportation and Bridges, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 80-233 Gdansk, Poland
Satellite geodetic networks are commonly used in surveying tasks, but they can also be used in mobile surveys. Mobile satellite surveys can be used for trackage inventory, diagnostics and design. The combination of modern technological solutions with the adaptation of research methods known in other fields of science offers an opportunity to acquire highly accurate solutions for railway track inventory. This article presents the effects of work carried out using a mobile surveying platform on which Global Navigation Satellite System (GNSS) receivers were mounted. The satellite observations (surveys) obtained were aligned using one of the methods known from classical land surveying. The records obtained during the surveying campaign on a 246th km railway track section were subjected to alignment. This article provides a description of the surveying campaign necessary to obtain measurement data and a theoretical description of the method employed to align observation results as well as their visualisation.
