Artículo
Contact plan design for GNSS constellations: A case study with Optical Inter-Satellite Links
Fecha de publicación:
12/2021
Editorial:
Institute of Electrical and Electronics Engineers
Revista:
IEEE Transactions on Aerospace and Electronic Systems
ISSN:
0018-9251
e-ISSN:
1557-9603
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Optical Inter-Satellite Links (OISLs) are being con-sidered for future Global Navigation Satellite System (GNSS)constellations. Thanks to OISLs, the constellation incorporatesimproved clock synchronization and precise ranging among thesatellites, which are essential features to achieve accurate timeand orbit determination. High data rate communications withinthe space segment also reduce ground segment dependency, bymeans of decentralized access to information. However, the dualoptimization of data and navigation performance metrics requiresa careful assignment of OISLs to the available laser communica-tion terminals on-board. To this end, we present a Contact PlanDesign (CPD) scheme based on a Degree Constrained MinimumSpanning Tree heuristic applied to such OISL-enabled GNSS (O-GNSS) constellations. Results on the Kepler system, a novel GNSSproposal, show that a fair distribution of connectivity among theconstellation can be ensured while optimizing its range-basedposition estimation capabilities (PDOP). A PDOP improvementof 85 % is reached on average by the optimized contact plan withrespect to a generic scheduler that disregards the geometricaldistribution of the chosen links.
Palabras clave:
CONTACT PLAN DESIGN
,
DEGREE CONSTRAINED MINIMUM SPANNING TREE
,
GLOBAL NAVIGATION SATELLITE SYSTEM
,
GRAPH THEORY
,
KEPLER
,
LOW EARTH ORBIT SATELLITES
,
OPTICAL FIBER COMMUNICATION
,
OPTICAL INTER-SATELLITE LINKS
,
OPTIMAL SCHEDULING
,
SATELLITE BROADCASTING
,
SATELLITE CONSTELLATIONS
,
SATELLITES
,
SPACE VEHICLES
,
SYNCHRONIZATION
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IDIT)
Articulos de INSTITUTO DE ESTUDIOS AVANZADOS EN INGENIERIA Y TECNOLOGIA
Articulos de INSTITUTO DE ESTUDIOS AVANZADOS EN INGENIERIA Y TECNOLOGIA
Citación
Nardin, Andrea; Fraire, Juan Andres; Dovis, Fabio; Contact plan design for GNSS constellations: A case study with Optical Inter-Satellite Links; Institute of Electrical and Electronics Engineers; IEEE Transactions on Aerospace and Electronic Systems; 58; 3; 12-2021; 1981-1995
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