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IRNSS/NavIC L5 Attitude Determination

The Indian Regional Navigation Satellite System (IRNSS) has recently (May 2016) become fully-operational and has been provided with the operational name of NavIC (Navigation with Indian Constellation). It has been developed by the Indian Space Research Organization (ISRO) with the objective of offer...

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Autores principales: Zaminpardaz, Safoora, Teunissen, Peter J.G., Nadarajah, Nandakumaran
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5336083/
https://www.ncbi.nlm.nih.gov/pubmed/28146107
http://dx.doi.org/10.3390/s17020274
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author Zaminpardaz, Safoora
Teunissen, Peter J.G.
Nadarajah, Nandakumaran
author_facet Zaminpardaz, Safoora
Teunissen, Peter J.G.
Nadarajah, Nandakumaran
author_sort Zaminpardaz, Safoora
collection PubMed
description The Indian Regional Navigation Satellite System (IRNSS) has recently (May 2016) become fully-operational and has been provided with the operational name of NavIC (Navigation with Indian Constellation). It has been developed by the Indian Space Research Organization (ISRO) with the objective of offering positioning, navigation and timing (PNT) to the users in its service area. This contribution provides for the first time an assessment of the IRNSS L5-signal capability to achieve instantaneous attitude determination on the basis of data collected in Perth, Australia. Our evaluations are conducted for both a linear array of two antennas and a planar array of three antennas. A pre-requisite for precise and fast IRNSS attitude determination is the successful resolution of the double-differenced (DD) integer carrier-phase ambiguities. In this contribution, we will compare the performances of different such methods, amongst which the unconstrained and the multivariate-constrained LAMBDA method for both linear and planar arrays. It is demonstrated that the instantaneous ambiguity success rates increase from 15% to 90% for the linear array and from 5% to close to 100% for the planar array, thus showing that standalone IRNSS can realize 24-h almost instantaneous precise attitude determination with heading and elevation standard deviations of 0.05° and 0.10°, respectively.
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spelling pubmed-53360832017-03-16 IRNSS/NavIC L5 Attitude Determination Zaminpardaz, Safoora Teunissen, Peter J.G. Nadarajah, Nandakumaran Sensors (Basel) Article The Indian Regional Navigation Satellite System (IRNSS) has recently (May 2016) become fully-operational and has been provided with the operational name of NavIC (Navigation with Indian Constellation). It has been developed by the Indian Space Research Organization (ISRO) with the objective of offering positioning, navigation and timing (PNT) to the users in its service area. This contribution provides for the first time an assessment of the IRNSS L5-signal capability to achieve instantaneous attitude determination on the basis of data collected in Perth, Australia. Our evaluations are conducted for both a linear array of two antennas and a planar array of three antennas. A pre-requisite for precise and fast IRNSS attitude determination is the successful resolution of the double-differenced (DD) integer carrier-phase ambiguities. In this contribution, we will compare the performances of different such methods, amongst which the unconstrained and the multivariate-constrained LAMBDA method for both linear and planar arrays. It is demonstrated that the instantaneous ambiguity success rates increase from 15% to 90% for the linear array and from 5% to close to 100% for the planar array, thus showing that standalone IRNSS can realize 24-h almost instantaneous precise attitude determination with heading and elevation standard deviations of 0.05° and 0.10°, respectively. MDPI 2017-01-30 /pmc/articles/PMC5336083/ /pubmed/28146107 http://dx.doi.org/10.3390/s17020274 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zaminpardaz, Safoora
Teunissen, Peter J.G.
Nadarajah, Nandakumaran
IRNSS/NavIC L5 Attitude Determination
title IRNSS/NavIC L5 Attitude Determination
title_full IRNSS/NavIC L5 Attitude Determination
title_fullStr IRNSS/NavIC L5 Attitude Determination
title_full_unstemmed IRNSS/NavIC L5 Attitude Determination
title_short IRNSS/NavIC L5 Attitude Determination
title_sort irnss/navic l5 attitude determination
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5336083/
https://www.ncbi.nlm.nih.gov/pubmed/28146107
http://dx.doi.org/10.3390/s17020274
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