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

A novel Markov Model for the computation of the continuity risk in Maritime applications

Franzese, Giulio and Martini, Ilaria and Lo Presti, Leticia (2017) A novel Markov Model for the computation of the continuity risk in Maritime applications. International Technical Meeting ITM ION 2017, Monterey, Ca, USA.

[img] PDF
1MB

Abstract

In this paper we focused on the analysis of the continuity risk for a maritime user and on the derivation of the receiver implementation scheme that fulfills IMO requirements. We s tarted our analysis by considering the traditional model, which is accurate for aviation applications, while it is not guaranteed to work in other environments. To take into account the time evolution of the continuity risk, we propose in this paper to introduce Markov models. The derived models can be used to compute the continuity risk when a receiver not implementing exclusion is used, as well as when a receiver implements both snapshot and sequential exclusion. The derived conclusion is that without exclusion, it is not possible to achieve the required performance. It is shown that, considering only satellite faults, over the 3 hours of operation, in principle a snapshot exclusion mechanism is sufficient. When implementing sequential exclusion, at the cost of an increased complexity, the continuity risk is furthermore reduced. We also showed that, under some temporal limitations and with some assumptions on the exclusion mechanism, the results provided by the Markov models and by the average sense model coincide. This final consideration shows that the proposed approach can be seen as a natural extension of the state of the art model from the avionic environment to the maritime environment.

Item URL in elib:https://elib.dlr.de/133876/
Document Type:Conference or Workshop Item (Other)
Title:A novel Markov Model for the computation of the continuity risk in Maritime applications
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Franzese, Giuliogiulio.franzese (at) polito.itUNSPECIFIED
Martini, IlariaIlaria.Martini (at) dlr.deUNSPECIFIED
Lo Presti, LeticiaPoliToUNSPECIFIED
Date:30 January 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Continuity, Integrity, Markov
Event Title:International Technical Meeting ITM ION 2017
Event Location:Monterey, Ca, USA
Event Type:international Conference
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Oberpfaffenhofen
Institutes and Institutions:Space Administration
Deposited By: Martini, Ilaria
Deposited On:29 Jan 2020 09:20
Last Modified:29 Jan 2020 09:20

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.