Skip to content
J

J. S. Ojo

Publications (8)

Improvement on Profile Path Reduction Factors for Rain Attenuation Predictions Using Vertically – Pointing Radar for Terrestrial and Satellite Applications in Tropical Region

J. S. Ojo, M. A. Asaolu & G. A. Ibitola · Advances in Research · 2018

More than ever before, applications of satellite services continue to gain recognition due to more growth in technological systems and applications. However, propagations along the Earth-space path suffer degradation due to hydrometeors such as rain, fog, haze, snow and hail. Amo...

Open access Research Article 10.9734/AIR/2018/40446

Subsoil Competence Characterization of the Akure Metropolis, Southwest Nigeria

J. S. Ojo, M. O. Olorunfemi, O. J. Akintorinwa, S. Bayode, G. O. Omosuyi & F. O. Akinluyi · Journal of Geography, Environment and Earth Science International · 2015

Five hundred and thirteen Vertical Electrical Sounding data sets were acquired within the Akure9.  Metropolis, processed and interpreted quantitatively. Akure Metropolis lies within Latitudes 07°10.  09' and 07° 19'N and Longitudes 05° 07' and 05° 17'E and covers an areal extent...

Open access Research Article 10.9734/JGEESI/2015/15851

Characterization of Vertical Profile of Rain Micro-Structure Using Micro Rain Radar in a Tropical Part of Nigeria

A. C. Tomiwa, J. S. Ojo & M. O. Ajewole · Physical Science International Journal · 2018

Understanding the vertical microstructure of rain is one of the key tools to the physical processes of rain attenuation. In this paper, one-year (January 2010- December, 2010) data of rainfall parameters were considered and the microstructure of rain were studied using a vertical...

Open access Research Article 10.9734/PSIJ/2018/36981

Analysis of Clear Air Effects: Implication on Microwave Radio Communication Systems in Nigeria

O. L. Ojo & J. S. Ojo · Advances in Research · 2018

The variation of refractivity with height is of major importance in controlling the path                                       of propagation of radio wave in the troposphere. The variation which leads to                                      anomalous propagation such as sub refr...

Open access Research Article 10.9734/AIR/2018/40916

Thermal Diffusivity Variations at Ministry of Agriculture Akure South, Ondo State, South–West Nigeria

K. D. Adedayo, J. S. Ojo & I. E. Okoroafor · Physical Science International Journal · 2017

Thermal diffusivity variations of different soil types in a tropical location, Akure, Nigeria at three different depths over dry and wet seasons are presented. The time lag method was used to estimate the thermal diffusivity (D) of the experimental site using the hourly and mean...

Open access Research Article 10.9734/PSIJ/2017/24135

Characterization of Worst Month Statistics for Satellite-Earth Links Performance in Tropical Locations

O. M. Durodola, J. S. Ojo & M. O. Ajewole · Physical Science International Journal · 2017

The increasing development in satellite technology has brought about several novel mobile satellite services and applications. Consequently, there is a pressing demand for seamless data transfer and accessibility to satellite-earth microwave links in SHF/EHF frequency bands. Howe...

Open access Research Article 10.9734/PSIJ/2017/31899

Investigation of Depolarization and Cross Polarization over Ku-band Satellite Links in a Guinea Savanna Location, Nigeria

O. M. Durodola, Ibrahim Aminu, J. S. Ojo & M. O. Ajewole · Physical Science International Journal · 2018

In communication systems engineering, designers tend to optimize the channel capacity of radio links through frequency re-use by deploying dual independent orthogonally polarized channels in the same frequency band. Such frequency re-use techniques via linear or circular polariza...

Open access Research Article 10.9734/PSIJ/2018/39940

Assessment of Tropospheric Variation of Radio Refractivity and Field Strength Variability over Some Selected Stations in Northern Nigeria

M. M. Tanko, A. Akinbobola, M. S. Liman & J. S. Ojo · Physical Science International Journal · 2018

The effects of meteorological parameters on the tropospheric radio refractivity and field strength variability cannot be overemphasised especially at the lower troposphere. The variability of tropospheric radio refractivity and field strength over selected fourteen stations in no...

Open access Research Article 10.9734/PSIJ/2018/41320