DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Evaluation of PNT error limits using real world close encounters from AIS data

Engler, Evelin and Banyś, Paweł and Engler, Hans-Georg and Baldauf, Michael and Sill Torres, Frank (2021) Evaluation of PNT error limits using real world close encounters from AIS data. Journal of Marine Science and Engineering, 9 (2). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/jmse9020149. ISSN 2077-1312.

[img] PDF - Only accessible within DLR - Published version

Official URL: https://www.mdpi.com/2077-1312/9/2/149


: Collision avoidance is one of the main tasks on board ships to ensure safety at sea. In order to comply with this requirement, the direct ship environment, which is often modelled as ship's domain, has to be kept free of other vessels and objects. This paper addresses the question to which extent inaccuracies in Position (P), Navigation (N), and Timing (T) data impact the reliability of collision avoidance. Employing a simplified model of the ship domain, the determined error bounds are used to derive requirements for ship-side PNT data provision. For this purpose, vessel traffic data obtained in the western Baltic Sea based on the Automatic Information System (AIS) is analysed to extract all close encounters between ships considered as real-world traffic situations with a potential risk of collision. This study assumes that in these situations erroneous data can lead to an incorrect assessment of the situation with regard to existing collision risks. The size of the error determines whether collisions are detected, spatially incorrectly assigned or not detected. Therefore, the non-recognition of collision risks ultimately determines the limits of tolerable errors in the PNT data. The results indicate that under certain conditions the probability of non-recognition of existing collision risks can reach non-negligible values, e.g. more than 1%, even though position accuracies are better than 10 m.

Item URL in elib:https://elib.dlr.de/140703/
Document Type:Article
Title:Evaluation of PNT error limits using real world close encounters from AIS data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Engler, EvelinUNSPECIFIEDhttps://orcid.org/0000-0002-0336-9386UNSPECIFIED
Banyś, PawełUNSPECIFIEDhttps://orcid.org/0000-0001-9865-1482UNSPECIFIED
Engler, Hans-GeorgUNSPECIFIEDhttps://orcid.org/0000-0002-7147-6597UNSPECIFIED
Baldauf, MichaelUNSPECIFIEDhttps://orcid.org/0000-0002-7333-0348UNSPECIFIED
Sill Torres, FrankUNSPECIFIEDhttps://orcid.org/0000-0002-4028-455XUNSPECIFIED
Date:1 February 2021
Journal or Publication Title:Journal of Marine Science and Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:JMSE Ocean Engineering
Keywords:Position, Navigation, and Timing Data (PNT), Automatic Identification System (AIS), performance requirements, collision avoidance, safety
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - I4Port (old)
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Nautical Systems
Institute for the Protection of Maritime Infrastructures > Reslience of Maritime Systems
Deposited By: Engler, Dr.-Ing. Evelin
Deposited On:02 Feb 2021 16:19
Last Modified:28 Mar 2023 23:58

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.