The Geodetic Detrending technique: enabling high-accuracy navigation under scintillation
View/Open
IEEE_WISEE2020.pdf (552,7Kb) (Restricted access)
Request copy
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Cita com:
hdl:2117/335401
Document typeConference report
Defense date
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
European Commission's projectNAVSCIN - High Accuracy Navigation under Scintillation Conditions (EC-H2020-797461)
Abstract
Scintillation is a particular type of space weather perturbation occurred when the signals from the Global Navigation Satellite System (GNSS) traverse irregularities in the ionosphere; the upper layer of the Earth atmosphere. This produces rapid variations on the refraction index and, when the size of the irregularities is close to the Fresnel length of the frequencies used in GNSS frequencies, can also produce diffractive effects affecting the signal amplitude and the tracking of the carrier-phase measurements. Under these conditions, techniques delivering a High Accuracy Service (HAS) are severely degraded in terms of positioning accuracy and availability. The research group of Astronomy and Geomatics has recently introduced the Geodetic Detrending to perform scintillation studies. The GD method removes slowly-varying effects (i.e., trends) in the GNSS signals, such as the satellite movement, the on-board atomic clock offset, and the tropospheric delay (the atmosphere layer from sea level up to 50 km in height). Once the trends are removed, the GD technique allows studying effects of shorter time-scale –rapid fluctuations–of the GNSS signals, with the focus on the identification and correction of discontinuities, the so-called “cycle-slips”, on the geodetically de-trended GNSS carrier-phase measurements. Ultimately, once the cycle-slips problem is mitigated, the HAS can be re-stored under scintillation conditions.
CitationRovira-Garcia, A. [et al.]. The Geodetic Detrending technique: enabling high-accuracy navigation under scintillation. A: IEEE International Conference on Wireless for Space and Extreme Environments. "2020 IEEE International Conference on Wireless for Space and Extreme Environments (WiSEE), Vicenza, Italy, 2020". Institute of Electrical and Electronics Engineers (IEEE), p. 1-4. ISBN 978-1-7281-6452-6. DOI 10.1109/WiSEE44079.2020.9262461.
ISBN978-1-7281-6452-6
Publisher versionhttps://ieeexplore.ieee.org/abstract/document/9262461
Files | Description | Size | Format | View |
---|---|---|---|---|
IEEE_WISEE2020.pdf![]() | 552,7Kb | Restricted access |
All rights reserved. This work is protected by the corresponding intellectual and industrial
property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public
communication or transformation of this work are prohibited without permission of the copyright holder