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Séminaire

Joint Design of GNSS Signal and Message Structure for Galileo 2nd Generation

Auteur : Ortega Espluga Lorenzo

Seminar of TeSA, Toulouse, March 5, 2019.

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The design of a new GNSS signal is always a trade-off between several figures of merit such as the position accuracy, the sensitivity or the Time To First Fix (TTFF). However, if the goal of the new signal design is to improve the acquisition process, the sensitivity and the TTFF have a higher relevance as figures of merit. Considering that, the main goal of this work is to present the joint design of a GNSS signal and the message structure to propose a new Galileo 2nd Generation (G2G) signal, which provides a higher sensitivity in the receiver and reduces the TTFF, in order to improve the acquisition process. Besides that, since this work has focused on the Galileo E1 Open Service (E1-OS), the signal must be compatible with those signals already presented in the same radio frequency spectrum. However, many of the concepts and methodologies can be easily extended to any GNSS signal. In order to present the join design of a GNSS signal and the message structure, several aspects such as the spreading modulation, the pseudorandom noise (PRN) codes, the channel coding or the signal multiplexing must be addressed.

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Communications numériques / Localisation et navigation et Systèmes spatiaux de communication

Note technique

Details on Impulse Response Estimation and Size Determination

Auteurs : Lubeigt Corentin, Ortega Espluga Lorenzo, Chaumette Eric et Vilà-Valls Jordi

This is a supplementary material associated with the article "Band-limited impulse response estimation performance" that can be found, in the online version, at doi: https://doi.org/10.1016/j.sigpro.2023.108998.

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Traitement du signal et des images / Localisation et navigation

Technical Note - Developments for MCRB Computation in Multipath Scenarios

Auteurs : Lubeigt Corentin, Ortega Espluga Lorenzo, Vilà-Valls Jordi et Chaumette Eric

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This is a supplementary material associated with the article "Untangling first and second order statistics contributions in multipath scenarios" that can be found, in the online version, at doi: https://doi.org/10.1016/j.sigpro.2022.108868.

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Traitement du signal et des images / Localisation et navigation

Technical Note: Mathematical Development of the Interplexing 6 Signals for the Galileo E1 Band

Auteurs : Ortega Espluga Lorenzo, Poulliat Charly, Boucheret Marie-Laure, Aubault-Roudier Marion et Al Bitar Hanaa

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Communications numériques / Localisation et navigation et Systèmes spatiaux de communication

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