Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636054
Title: A study of tropospheric radiowave propagation
Author: Bataineh, M. H.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1995
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Abstract:
The troposphere, or the gaseous layer adjacent to the earth's surface, has a marked effect on radiowave propagation. The primary effect of non-constant tropospheric refractive index is to cause the path of radio waves to be curved rather than straight. Anomalous climatic conditions may lead to the formation of layers in the troposphere, within which radio energy is confined, and to propagate with lower attenuation than would be observed in a homogenous troposphere. An alternative method of modelling tropospheric refractivity based on the physical processes involved is proposed. Methods used to predict the field strength, taking into consideration the geometry of the earth, are addressed. The application of the parabolic equation method to the propagation of waves then becomes a very useful and versatile method. A detailed mathematical development of the method, along with some coverage diagrams examples, are given. The study presents new maps, based on radiosonde data, for various ducting parameters. Some of these parameters are used in the path loss prediction procedure adopted by the International Telecommunication Union (ITU). Regression analysis of some parameters shows this to be a promising approach and gives more insight into the way that the various parameters affect the propagation variables under consideration.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.636054  DOI: Not available
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