On the Mitigation of Ionospheric Scintillation in Advanced GNSS Receivers
Ionospheric scintillation is one of the major threats and most challenging propagation scenarios affecting Global Navigation Satellite Systems (GNSS) and related applications. The fact that this phenomenon causes severe degradations only in equatorial and high latitude regions has led to very few co...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) |
| Repositorio: | r-CTTC. Repositorio Institucional Producción Científica del Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) |
| OAI Identifier: | oai:cttc.fundanetsuite.com:p1249 |
| Acceso en línea: | https://cttc.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=1249 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040993842&doi=10.1109%2fTAES.2018.2798480&partnerID=40&md5=ca0a71202114a78d89cb4abbdb9e59af |
| Access Level: | acceso abierto |
| Palabra clave: | Adaptive filtering Adaptive filters Communication satellites Filtration Ionospheric measurement Kalman filters Mathematical models Receivers (containers) Robustness (control systems) Safety engineering Satellites Scintillation Signal receivers Standards State space methods Carrier phase synchronization Global Navigation Satellite Systems GNSS Ionospheric scintillation Satellite broadcasting Scintillation model Global positioning system |
| Sumario: | Ionospheric scintillation is one of the major threats and most challenging propagation scenarios affecting Global Navigation Satellite Systems (GNSS) and related applications. The fact that this phenomenon causes severe degradations only in equatorial and high latitude regions has led to very few contributions dealing with the fundamental scintillation mitigation problem, being of paramount importance in safety critical applications and advanced integrity receivers. The goal of this paper is twofold, first to bring together the most relevant contributions on GNSS receiver design under scintillation conditions, and then, to propose a new GNSS carrier tracking framework and scintillation mitigation methodology. Scintillation complex gain components are modeled as AR processes and embedded into the state-space formulation, providing the filter the capability to distinguish between dynamics and phase scintillation contributions. In addition, the actual need of robust solutions is solved by using an adaptive filtering approach and directly operating with the baseband received signal. Simulation results, using both synthetic and real scintillation data, are provided to support the theoretical discussion and to show the performance improvements of such new approach. © 1965-2011 IEEE. |
|---|