Development and performance evaluation of tropospheric scintillation model on Ku-band satellite link over Akure, Nigeria

A Ashidi, J Ojo, A Adediji, O Ajewole - Advances in Space Research, 2021 - Elsevier
Existing amplitude scintillation prediction models often perform less satisfactorily when
deployed outside the regions where they were formulated. This necessitates the need to …

Phase synchronization between tropospheric radio refractivity and rainfall amount in a tropical region

IA Fuwape, ST Ogunjo, JB Dada, GA Ashidi… - Journal of Atmospheric …, 2016 - Elsevier
This study investigated linear and nonlinear relationship between the amount of rainfall and
radio refractivity in a tropical country, Nigeria using forty seven locations scattered across the …

Evaluation of concurrent variation in rain specific attenuation and tropospheric amplitude scintillation over Akure, Southwest Nigeria

AG Ashidi, JS Ojo, OJ Ajayi… - Earth Systems and …, 2021 - Springer
Rain constitutes a major limitation to the performance and use of terrestrial and satellite
communication systems with operational frequencies greater than 10 GHz. The situation …

[PDF][PDF] Seasonal variation of radio refractivity of some selected stations in Northern Nigeria

MM Tanko, MU Sarki, MA Bilya - Curr. J. Appl. Sci. Technol, 2019 - researchgate.net
The seasonal variation of radio refractivity of some selected stations (Abuja, Lafia, Bauchi,
Kaduna, Maiduguri, and Sokoto) in Northern Nigeria was analysed using surface …

Quarterly variation of tropospheric surface refractivity in Ilorin, Nigeria

MS Otto, AJ Oladiran, FA Oluwasesan… - Malaysian Journal of …, 2023 - mjes.um.edu.my
To construct a radio communication system, there is need for extensive knowledge of the
refractivity and its variations. This work aims to determine the change in season with …

Distribution analysis and autoregressive modelling of ultraviolet radiation over Akure, Nigeria

AG Ashidi, ST Ogunjo… - International Journal of …, 2019 - inderscienceonline.com
Management of health risks associated with excessive exposure to ultraviolet radiation
involves understanding its characteristics within any location. This work employed five-year …

[PDF][PDF] Variation of surface refractivity with soil permittivity and leaf wetness in a tropical location

A Kayode, A Ayodeji, O Samuel… - Int J Wireless Microwave …, 2019 - researchgate.net
Radio signal transmitting above the ground surface experiences attenuation as a result of
absorption by vegetation and hydrometeors, refraction due to turbulence in weather …

SEASONAL VARIATION OF SURFACE REFRACTIVITY AND ITS DISTINCT COMPONENTS IN ILORIN, KWARA STATE, NIGERIA

MS Otto, OJ Abimbola, E Sanderson… - Nigerian Journal of …, 2022 - njp.nipngr.org
This work investigated both wet and dry component of seasonal variations in the
tropospheric surface refractivity of Ilorin, Kwara State, Nigeria in order to understand the …

Prediction of tropospheric amplitude scintillation for accurate design of earth-space communication link over akure, nigeria

AG Ashidi, JS Ojo, MO Ajewole, AT Adediji - MAPAN, 2022 - Springer
Tropospheric scintillation is liable to spatio-temporal variation due to its dependence on
meteorological parameters and link variables. The dynamics of variation must be …

Assessment of tropospheric variation of radio refractivity and field strength variability over some selected stations in northern Nigeria

M Tanko, A Akinbobola, M Liman… - Physical Science …, 2018 - asian.go4sending.com
The effects of meteorological parameters on the tropospheric radio refractivity and field
strength variability cannot be overemphasised especially at the lower troposphere. The …