Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Olugbenga Ogunmodimu"'
Autor:
Aghogho Ogwala, Oluwole Johnson Oyedokun, Olugbenga Ogunmodimu, Andrew Ovie Akala, Masood Ashraf Ali, Punyawi Jamjareegulgarn, Sampad Kumar Panda
Publikováno v:
Universe, Vol 8, Iss 11, p 575 (2022)
Research on longitudinal discrepancies in local ionospheric variability, especially in equatorial and low-latitude regions, is a focal point of interest for the space weather modeling community. The ionosphere over these regions is influenced by comp
Externí odkaz:
https://doaj.org/article/593ad253322b4c97bb7a071ac6a46c0f
Autor:
Victor U. J. Nwankwo, William Denig, Sandip K. Chakrabarti, Olugbenga Ogunmodimu, Muyiwa P. Ajakaiye, Johnson O. Fatokun, Paul I. Anekwe, Omodara E. Obisesan, Olufemi E. Oyanameh, Oluwaseun V. Fatoye
Publikováno v:
Annales Geophysicae. 40:433-461
We performed a diagnostic study of geomagnetic storm-induced disturbances that are coupled to the mid-latitude D region by quantifying the propagation characteristics of very low-frequency (VLF) radio signals from transmitters located in Cumbria, UK
Autor:
Olugbenga Ogunmodimu, S.S. Rukera, O. E. Abe, O.V. Omole, Temitope Seun Oluwadare, B. Adeyemi, I. Emmanuel
Publikováno v:
Canadian Journal of Physics
The ionosphere model is essential to satellite-based systems to accurately correct the ionospheric error encountered by satellite signals en route. The Levenberg–Marquardt backpropagation (LMBP) algorithm in the artificial neural network (ANN) was
Autor:
Oluwole Oyedokun, Daniel Okoh, Sunil K. Sharma, Olugbenga Ogunmodimu, E. O. Onori, Aghogho Ogwala, E.O. Somoye, Sampad Kumar Panda
Publikováno v:
Advances in Space Research. 68:2160-2176
Ionosphere plays crucial role in satellite communication as well as the modern space-based positioning, navigation and timing applications. Progressive exploitation of ground and space-based observations across the African region has relatively stren
Autor:
B. Adeyemi, Olugbenga Ogunmodimu, O. E. Abe, I. Emmanuel, Temitope Seun Oluwadare, E.J. Oluwadare
Publikováno v:
Journal of Spatial Science
This paper examines the accuracy of the Global Positioning System (GPS) within the African low-latitude sector. We evaluated the vertical and horizontal of the single-point positioning (SPP) accuracy of GPS and critically analysed the effects of the
Autor:
Olugbenga A. Sowande, Francis E. Idachaba, Sunday C. Ekpo, Nasir Faruk, Noushin Karimian, Olugbenga Ogunmodimu, Abdulkarim A. Oloyede, Lukman A. Olawoyin, Sulyman A. Abdulkareem
Publikováno v:
2022 IEEE Nigeria 4th International Conference on Disruptive Technologies for Sustainable Development (NIGERCON).
Autor:
Olugbenga Ogunmodimu, E. O. Onori, Oluwole Oyedokun, Rasaq Adewemimo Adeniji-Adele, Aghogho Ogwala, E.O. Somoye
Publikováno v:
Annales Geophysicae, Vol 37, Pp 775-789 (2019)
The ionosphere is the major error source for the signals of global positioning system (GPS) satellites. In the analysis of GPS measurements, ionospheric error is assumed to be somewhat of a nuisance. The error induced by the ionosphere is proportiona
Autor:
Olugbenga Akinkunmi Sowande, Francis Enejo Idachaba, Sunday Ekpo, Nasir Faruk, Mfonobong Uko, Olugbenga Ogunmodimu
Publikováno v:
International Review of Aerospace Engineering (IREASE). 15:85
Autor:
William Denig, Dra. Emilia Correia, Olugbenga Ogunmodimu, Victor U. J. Nwankwo, Jean-Pierre Raulin, Rafael R De Oliveira, Olanike Akinola
We analysed variations in signal metrics and the diurnal amplitude of VLF radiowaves from four propagation paths during intervals of 4 geomagnetic storms on 17, 26 September, 25 October and 1 Novem...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50ca51b63a5ddc4f3d17ae4df29c817a
https://doi.org/10.1002/essoar.10504067.1
https://doi.org/10.1002/essoar.10504067.1
Publikováno v:
NRIAG Journal of Astronomy and Geophysics, Vol 7, Iss 1, Pp 31-39 (2018)
Solar flare events are a major observing emphasis for space weather because they affect the ionosphere and can eject high-energy particles that can adversely affect Earth's technologies. In this study we model 38.2 MHz cosmic noise absorption (CNA) b