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 …

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 …

Radio refractivity gradients in the lowest 100m of the atmosphere over Lagos, Nigeria in the rainy-harmattan transition phase

OF Dairo, LB Kolawole - Journal of Atmospheric and Solar-Terrestrial …, 2018‏ - Elsevier
Radio engineers and researchers in conjunction with the International Telecommunication
Union (ITU) have established the pivotal role of radio refractivity to the propagation of …

Climatology of super‐refraction and trap** layers conditions over Central and West Africa

S Kaissassou, L Djiotang, A Komkoua… - Meteorological …, 2021‏ - Wiley Online Library
The propagation of radio electric waves emitted from ground‐based meteorological
instruments is determined through stratification of the atmosphere. In super‐refractive cases …

Performance analysis of microwave radio refractivity on radio field strength and radio horizon distance over Akure, Nigeria

AT Adediji, M Ismail, JS Mandeep - Wireless personal communications, 2014‏ - Springer
Surface radio refractivity studies are being carried out in Akure,(7.15^ ∘ N, 5.12^ ∘ E)(7.
15∘ N, 5. 12∘ E) South-Western Nigeria, by in-situ measurement of atmospheric pressure …

Field Strength Variability Map** of Nigeria

MM Tanko, MS Liman, WL Lumbi… - Journal of the …, 2022‏ - journal.nsps.org.ng
The analysis of the field strength variability using the meteorological parameters
(temperature, pressure and relative humidity) retrieved from the archive of National …

Reduced-to-sea-level value of microwave radio refractivity over three stations in Nigeria

AT Adediji - Nigeria Journal of Pure and Applied Physics, 2017‏ - ajol.info
Adequate knowledge of the temporal and spatial variations of surface refractivity, Ns is
required for planning of broadcasting services including terrestrial radio links over a region …

Modeling low elevation GPS signal propagation in maritime atmospheric ducts

J Zhang, Z Wu, B Wang, H Wang, Q Zhu - Journal of Atmospheric and Solar …, 2012‏ - Elsevier
Using the parabolic wave equation (PWE) method, we model low elevation GPS L1 signal
propagation in maritime atmospheric ducts. To consider sea surface impedance, roughness …

Seasonal and diurnal trends of surface refractivity in a tropical environment using ground-based automatic weather stations

N Yusuf, OE Ekpe, RS Said, BG Ayantunji… - Meteorology and …, 2020‏ - Springer
The seasonal and diurnal trends of surface refractivity were derived using International
Telecommunication Union Radio assembly model (ITU-R P. 453-13) in two locations of …

Profile Measurement and Distribution Statistics of Amplitude Scintillation Within the Lowest Tropospheric Layers Using Karasawa Model

AG Ashidi, OA Layioye - MAPAN, 2024‏ - Springer
Characterizing the variation dynamics of amplitude scintillation within the lowest layers of
the troposphere is important for many communication system applications. It provides fast …