RESEARCH PAPER
Analysis of the Determination of the Accuracy Parameter for Dual Receivers Based on EGNOS Solution in Aerial Navigation
1
Institute of Navigation, Polish Air Force University, ul. Dywizjonu 303 nr 35, 08-521 Dęblin, Poland
2
Faculty of Transport and Aviation Engineering, Silesian University of Technology, ul. Krasińskiego 8, 40-019 , Katowice, Poland.
Submission date: 2022-07-06
Acceptance date: 2022-08-22
Online publication date: 2022-11-01
Publication date: 2022-12-01
Acta Mechanica et Automatica 2022;16(4):365-372
KEYWORDS
ABSTRACT
The paper presents the results of research on the determination of the accuracy parameter for European Geostationary Navigation Overlay System (EGNOS) positioning for a dual set of on-board global navigation satellite system (GNSS) receivers. The study focusses in particular on presenting a modified algorithm to determine the accuracy of EGNOS positioning for a mixed model with measurement weights. The mathematical algorithm considers the measurement weights as a function of the squared inverse and the inverse of the position dilution of precision (PDOP) geometrical coefficient. The research uses actual EGNOS measurement data recorded by two on-board GNSS receivers installed in a Diamond DA 20-C airplane. The calculations determined the accuracy of EGNOS positioning separately for each receiver and the resultant value for the set of two GNSS receivers. Based on the conducted tests, it was determined that the mixed model with measurement weights in the form of a function of the inverse square of the PDOP geometrical coefficient was the most efficient and that it improved the accuracy of EGNOS positioning by 37%–63% compared to the results of position errors calculated separately for each GNSS receiver.
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| eISSN: | 2300-5319 |
| ISSN: | 1898-4088 |
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