Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements

In navigation, the Twice the Distance Root Mean Square (2DRMS) is commonly used as a position accuracy measure. Its determination, based on statistical methods, assumes that the position errors are normally distributed and are often not reflected in actual measurements. As a result of the widespread...

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Autor principal:	Mariusz Specht
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	navigation positioning system positioning accuracy reliability method Global Positioning System (GPS) Differential Global Positioning System (DGPS) European Geostationary Navigation Overlay Service (EGNOS) Science Q
Acceso en línea:	https://doaj.org/article/9c0aab3c84304a779261bc67d0cb07e5
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spelling	oai:doaj.org-article:9c0aab3c84304a779261bc67d0cb07e52021-11-11T18:56:19ZDetermination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements10.3390/rs132144242072-4292https://doaj.org/article/9c0aab3c84304a779261bc67d0cb07e52021-11-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/21/4424https://doaj.org/toc/2072-4292In navigation, the Twice the Distance Root Mean Square (2DRMS) is commonly used as a position accuracy measure. Its determination, based on statistical methods, assumes that the position errors are normally distributed and are often not reflected in actual measurements. As a result of the widespread adoption of this measure, the positioning accuracy of navigation systems is overestimated by 10–15%. In this paper, a new method is presented for determining the navigation system positioning accuracy based on a reliability model where the system’s operation and failure statistics are referred to as life and failure times. Based on real measurements, the method proposed in this article will be compared with the classical method (based on the 2DRMS measure). Real (empirical) measurements made by the principal modern navigation positioning systems were used in the analyses: Global Positioning System (GPS) (168’286 fixes), Differential Global Positioning System (DGPS) (900’000 fixes) and European Geostationary Navigation Overlay Service (EGNOS) (900’000 fixes). Research performed on real data, many of which can be considered representative, have shown that the reliability method provides a better (compared to the 2DRMS measure) estimate of navigation system positioning accuracy. Thanks to its application, it is possible to determine the position error distribution of the navigation system more precisely when compared to the classical method, as well as to indicate those applications that can be used by this system, ensuring the safety of the navigation process.Mariusz SpechtMDPI AGarticlenavigation positioning systempositioning accuracyreliability methodGlobal Positioning System (GPS)Differential Global Positioning System (DGPS)European Geostationary Navigation Overlay Service (EGNOS)ScienceQENRemote Sensing, Vol 13, Iss 4424, p 4424 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	navigation positioning system positioning accuracy reliability method Global Positioning System (GPS) Differential Global Positioning System (DGPS) European Geostationary Navigation Overlay Service (EGNOS) Science Q
spellingShingle	navigation positioning system positioning accuracy reliability method Global Positioning System (GPS) Differential Global Positioning System (DGPS) European Geostationary Navigation Overlay Service (EGNOS) Science Q Mariusz Specht Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
description	In navigation, the Twice the Distance Root Mean Square (2DRMS) is commonly used as a position accuracy measure. Its determination, based on statistical methods, assumes that the position errors are normally distributed and are often not reflected in actual measurements. As a result of the widespread adoption of this measure, the positioning accuracy of navigation systems is overestimated by 10–15%. In this paper, a new method is presented for determining the navigation system positioning accuracy based on a reliability model where the system’s operation and failure statistics are referred to as life and failure times. Based on real measurements, the method proposed in this article will be compared with the classical method (based on the 2DRMS measure). Real (empirical) measurements made by the principal modern navigation positioning systems were used in the analyses: Global Positioning System (GPS) (168’286 fixes), Differential Global Positioning System (DGPS) (900’000 fixes) and European Geostationary Navigation Overlay Service (EGNOS) (900’000 fixes). Research performed on real data, many of which can be considered representative, have shown that the reliability method provides a better (compared to the 2DRMS measure) estimate of navigation system positioning accuracy. Thanks to its application, it is possible to determine the position error distribution of the navigation system more precisely when compared to the classical method, as well as to indicate those applications that can be used by this system, ensuring the safety of the navigation process.
format	article
author	Mariusz Specht
author_facet	Mariusz Specht
author_sort	Mariusz Specht
title	Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
title_short	Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
title_full	Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
title_fullStr	Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
title_full_unstemmed	Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements
title_sort	determination of navigation system positioning accuracy using the reliability method based on real measurements
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9c0aab3c84304a779261bc67d0cb07e5
work_keys_str_mv	AT mariuszspecht determinationofnavigationsystempositioningaccuracyusingthereliabilitymethodbasedonrealmeasurements
_version_	1718431661710901248

Determination of Navigation System Positioning Accuracy Using the Reliability Method Based on Real Measurements

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