Radio refractivity impact on signal strength of mobile communication

J Amajama, EN Asagha, OJ Ushie… - Journal of Electrical …, 2023 - Wiley Online Library
This research investigated radio refractivity impact on signal strength of mobile
communication. The mobile communication signal strengths of two popular networks in …

Estimation of some Radio Propagation Parameters using Measurements of Surface Meteorological Variables in Ede, Southwest Nigeria

AA Willoughby, ME Sanyaolu… - Journal of the …, 2023 - journal.nsps.org.ng
A data acquisition system that utilised the open-source Arduino platform was developed to
take real-time ground measurements of primary radio climatological variables of pressure …

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 …

Investigation of Atmospheric Anomalies due to the Great Tohoku Earthquake Disturbance Using NRLMSISE-00 Atmospheric Model Measurement

L Endeshaw - Pure and Applied Geophysics, 2024 - Springer
In this study, the atmospheric changes for the 9.0-magnitude Tohoku earthquake, which
occurred on March 11, 2011, are analyzed. The March 11, 2011 earthquake was preceded …

Characterization of modified refractivity across the arid region of Nigeria

G Imaga, E Israel, S Egoigwe - 2023 - researchsquare.com
Over time, atmospheric ducts have been studied in a bid to understand and harness for
optimal tropospheric propagation of radio waves. The most useful quantity in the study of …

[PDF][PDF] Research Article Radio Refractivity Impact on Signal Strength of Mobile Communication

J Amajama, EN Asagha, OJ Ushie, PC Iwuji… - atmosphere, 2023 - academia.edu
Tis research investigated radio refractivity impact on signal strength of mobile
communication. Te mobile communication signal strengths of two popular networks in …

Field Strength Variability Mapping 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 …

[PDF][PDF] Chaotic Signature in Power Spectrum and Recurrence Quantification of Dynamical Behaviour of Multivariate Time Series

AE Adenij - Communication in Physical Sciences, 2024 - journalcps.com
This study investigates the presence of nonlinear dynamics and chaotic behaviour in air
temperature, atmospheric pressure, and relative humidity using data collected from Lagos …

Comparative assessment of radio occultation-based refractivity measurements from the COSMIC mission and in-situ atmospheric measurements in equatorial Africa

JN Nzeagwu, JO Urama, AE Chukwude… - … and Atmospheric Physics, 2021 - Springer
The growing technological needs for multi-instrument datasets require proper understanding
of the behaviour of the datasets relative to each other. This paper presents the first results of …

Estimation of refractivity gradients and effective earth radius factor (K-factor) in the lowest 100 m of the atmosphere over Ogbomoso, southwestern Nigeria

KO Suleman, SB Suleiman, LA Sunmonu… - ITEGAM …, 2024 - itegam-jetia.org
Upon deviation from standard condition, anomalous propagations are usually experienced
in within the atmosphere. As a result, it is very pertinent to considered the value of the …