GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares
Autori
Nina, AleksandraNico, Giovanni
Odalović, Oleg
Čadež, Vladimir M.
Todorović-Drakul, Miljana
Radovanović, Milan
Popović, Luka Č.
Članak u časopisu (Recenzirana verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
We investigate the influence of the perturbed (by a solar X-ray flare) ionospheric D-region on the GNSS and SAR signals. We calculate a signal delay in the D-region based on the low ionospheric monitoring by very low frequency (VLF) radio waves. Results show that the ionospheric delay in the perturbed D-region can be important and, therefore, should be taken into account in modeling the ionospheric influence on the GNSS and SAR signal propagation and in calculations relevant for space geodesy. This conclusion is significant because numerous existing models ignore the
impact of this ionospheric part on the GNSS and SAR signals due to its small electron density which is true only in quiet conditions and can result in significant errors in space geodesy during intensive ionospheric disturbances.
Ključne reči:
Ionosphere / Very Low Frequency (VLF) radio signals / Global Navigation Satellite Systems (GNSS) / Synthetic Aperture Radar (SAR) / SAR interferometry (InSAR)Izvor:
IEEE Geoscience and Remote Sensing Letters, 2019Izdavač:
- IEEE (Institute of Electrical and Electronics Engineers)
Finansiranje / projekti:
- Unapređenje geodetske infrastrukture Srbije za potrebe savremenog Državnog premera (RS-MESTD-Technological Development (TD or TR)-36020)
- Astroinformatika: primena IT u astronomiji i srodnim disciplinama (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-44002)
- Fizika zvezda (RS-MESTD-Basic Research (BR or ON)-176004)
- Geografija Srbije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-47007)
- Uticaj sudara na spektre astrofizičke plazme (RS-MESTD-Basic Research (BR or ON)-176002)
- Astrofizička spektroskopija vangalaktičkih objekata (RS-MESTD-Basic Research (BR or ON)-176001)
- OT4CLIMA Project, Italian Ministry of Education, University and Research
- COST Action TD1403
- Cost Action CA15211
- VarSITI Project
DOI: 10.1109/LGRS.2019.2941643
ISSN: 1545-598X
WoS: 000543724300019
Scopus: 2-s2.0-85087417061
Institucija/grupa
GraFarTY - JOUR AU - Nina, Aleksandra AU - Nico, Giovanni AU - Odalović, Oleg AU - Čadež, Vladimir M. AU - Todorović-Drakul, Miljana AU - Radovanović, Milan AU - Popović, Luka Č. PY - 2019 UR - https://grafar.grf.bg.ac.rs/handle/123456789/1760 AB - We investigate the influence of the perturbed (by a solar X-ray flare) ionospheric D-region on the GNSS and SAR signals. We calculate a signal delay in the D-region based on the low ionospheric monitoring by very low frequency (VLF) radio waves. Results show that the ionospheric delay in the perturbed D-region can be important and, therefore, should be taken into account in modeling the ionospheric influence on the GNSS and SAR signal propagation and in calculations relevant for space geodesy. This conclusion is significant because numerous existing models ignore the impact of this ionospheric part on the GNSS and SAR signals due to its small electron density which is true only in quiet conditions and can result in significant errors in space geodesy during intensive ionospheric disturbances. PB - IEEE (Institute of Electrical and Electronics Engineers) T2 - IEEE Geoscience and Remote Sensing Letters T1 - GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares DO - 10.1109/LGRS.2019.2941643 ER -
@article{ author = "Nina, Aleksandra and Nico, Giovanni and Odalović, Oleg and Čadež, Vladimir M. and Todorović-Drakul, Miljana and Radovanović, Milan and Popović, Luka Č.", year = "2019", abstract = "We investigate the influence of the perturbed (by a solar X-ray flare) ionospheric D-region on the GNSS and SAR signals. We calculate a signal delay in the D-region based on the low ionospheric monitoring by very low frequency (VLF) radio waves. Results show that the ionospheric delay in the perturbed D-region can be important and, therefore, should be taken into account in modeling the ionospheric influence on the GNSS and SAR signal propagation and in calculations relevant for space geodesy. This conclusion is significant because numerous existing models ignore the impact of this ionospheric part on the GNSS and SAR signals due to its small electron density which is true only in quiet conditions and can result in significant errors in space geodesy during intensive ionospheric disturbances.", publisher = "IEEE (Institute of Electrical and Electronics Engineers)", journal = "IEEE Geoscience and Remote Sensing Letters", title = "GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares", doi = "10.1109/LGRS.2019.2941643" }
Nina, A., Nico, G., Odalović, O., Čadež, V. M., Todorović-Drakul, M., Radovanović, M.,& Popović, L. Č.. (2019). GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares. in IEEE Geoscience and Remote Sensing Letters IEEE (Institute of Electrical and Electronics Engineers).. https://doi.org/10.1109/LGRS.2019.2941643
Nina A, Nico G, Odalović O, Čadež VM, Todorović-Drakul M, Radovanović M, Popović LČ. GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares. in IEEE Geoscience and Remote Sensing Letters. 2019;. doi:10.1109/LGRS.2019.2941643 .
Nina, Aleksandra, Nico, Giovanni, Odalović, Oleg, Čadež, Vladimir M., Todorović-Drakul, Miljana, Radovanović, Milan, Popović, Luka Č., "GNSS and SAR Signal Delay in Perturbed Ionospheric D-Region During Solar X-Ray Flares" in IEEE Geoscience and Remote Sensing Letters (2019), https://doi.org/10.1109/LGRS.2019.2941643 . .