Publications Repository - Gdańsk University of Technology

The article presents a solution to the problem of limited accuracy of dynamic measurements performed with GNSS receivers. The proposed measurement method is a response to the needs related to the assessment of the measurement uncertainty of the position of the track axis of the rail transport line. However, the problem of reducing the measurement uncertainty is universal for many different situations where high accuracy of positioning of objects is required, especially in motion. The article proposes a new method to determine object’s location using geometric constraints of a number of GNSS receivers arranged in symmetric configuration. The proposed method has been verified by comparing signals recorded by up to five GNSS receivers during stationary and dynamic measurements. The dynamic measurement was made on a tram track within the framework of a cycle of studies upon effective and efficient methods to catalogue and diagnose tracks. A detailed analysis of the results obtained with the quasi-multiple measurement method confirms remarkable reduction in their uncertainty. Their synthesis shows the usability of this method in dynamic conditions. The proposed method is expected to find application in measurements requiring high accuracy, and in case of deterioration of the signal quality from satellites by one or more of GNSS receivers due to the appearance of natural obstacles.

Authors

• dr hab. inż. Jacek Skibicki link open in new tab ,
• dr hab. inż. Andrzej Wilk link open in new tab ,
• prof. dr hab. inż. Władysław Koc link open in new tab ,
• dr inż. Roksana Licow link open in new tab ,
• dr inż. Jacek Szmagliński link open in new tab ,
• dr hab. inż. Piotr Chrostowski link open in new tab ,
• dr inż. Sławomir Judek link open in new tab ,
• dr hab. inż. Krzysztof Karwowski link open in new tab ,
• dr inż. Sławomir Grulkowski link open in new tab