AN ASSESSMENT OF THE IMPACT OF HARMATTAN PARTICLES ON MICROWAVE PROPAGATION IN THE SAVANNAH REGION (A CASE STUDY OF N’DJAMENA, CHAD)

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dc.contributor.authorPARFAIT, NALDONGAR
dc.date.accessioned2014-03-11T08:55:38Z
dc.date.available2014-03-11T08:55:38Z
dc.date.issued2007-09
dc.descriptionA THESIS PRESENTED TO THE DEPARTMENT OF ELECTRICAL ENGINEERING AHMADU BELLO UNIVERSITY, ZARIA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE DEGREE OF MASTER OF SCIENCE (MSc) IN ELECTRICAL ENGINEERING SEPTEMBER, 2007en_US
dc.description.abstractThis thesis reports the result of an assessment of the impact of harmattan particles on microwave signals in the savannah region. Emphasis was placed on the spatial harmattan particle density, the specific particle attenuation variation, the atmospheric attenuation and the dominant propagation mechanism during the harmattan period which is peculiar to the savannah region. The report studied scattering mechanism, absorption mechanism and specifically described how to determine the specific particle attenuation, atmospheric losses and spatial harmattan particles density. The attenuation of wavelengths in the 900MHz and 1800MHz band during harmattan period in the savannah region was studied and path loss curves are presented. The significant results obtained are also discussed and interpreted. Finally the comparative statistical analysis of the results has been done. It is established that the particle density is responsible for the scattering of electromagnetic energy which leads to attenuation in its signal strength. For the year 2004, the atmospheric losses range between 3.7dB and 12.55dB, for 2005, the atmospheric losses range between 3.3dB and 18.94dB for 2006, the atmospheric losses range between 1.71dB and 13.03dB. From the statistical analysis, the highest path loss occurs on Farcha road while the lowest occurs on Moursal road.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3672
dc.language.isoenen_US
dc.subjectASSESSMENT,en_US
dc.subjectIMPACT,en_US
dc.subjectHARMATTAN,en_US
dc.subjectPARTICLES,en_US
dc.subjectMICROWAVE,en_US
dc.subjectPROPAGATION,en_US
dc.subjectSAVANNAH,en_US
dc.subjectREGION,en_US
dc.subjectCASE STUDY,en_US
dc.subjectN’DJAMENA, CHADen_US
dc.titleAN ASSESSMENT OF THE IMPACT OF HARMATTAN PARTICLES ON MICROWAVE PROPAGATION IN THE SAVANNAH REGION (A CASE STUDY OF N’DJAMENA, CHAD)en_US
dc.typeThesisen_US
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