Software for Fresnel-Kirchoff Single Knife-Edge Diffraction Loss Model
Journal Title: Mathematical and Software Engineering - Year 2016, Vol 2, Issue 2
Abstract
In this paper, development of software for computing single knife-edge diffraction loss based on Fresnel-Kirchoff model and Lee’s analytical approximation model is presented. The mathematical expressions and algorithm for the single knife edge diffraction loss software are presented. The input required by the software includes frequency, height of the transmitter and receiver antennas, height of obstruction, distance of the obstruction from the transmitter or receiver. The output includes diffraction loss, Fresnel diffraction parameter, path length and phase difference between the direct and diffracted paths, the number and radius of all Fresnel zones block by the obstruction. Moreover, the software is used to study the variation of diffraction parameter, diffraction loss and other link parameters with obstruction height. Results are presented in tables, graphs and also as a list of parameters and their values. Sample diffraction loss computation is conducted for a 9GHz microwave link with 25 m knife edge obstruction. At diffraction parameter of 5.4772255575 the corresponding diffraction loss is -27.72756218 dB. More importantly, at diffraction parameter of 0 (zero) the corresponding diffraction loss is -6.02 dB which is in agreement with the published works on single knife edge diffraction loss at diffraction parameter of 0 (zero).
Authors and Affiliations
Okoye O. Jude, Afolayan J. Jimoh, Akinloye Eunice
Keywords
Related Articles
- EP ID EP326493
- DOI -
- Views 129
- Downloads 0
Evaluation of the Distribution of Terrain Roughness Index for Terrestrial Line of Site Microwave Links in Uyo Metropolis
In this paper, the distribution of terrain roughness index in Uyo metropolis is presented. The path (elevation) profiles of various regions or areas in Uyo are captured and then used to compute the terrain roughness inde...
Modified Algorithm for Steganalysis
This paper proposes a modified algorithm for steganalysis based on data compression. The experimental results verify that the proposed steganalysis can detect the altered images with high accuracy.
Development of Optimal Site Selection Method for Large Scale Solar Photovoltaic Power Plant
In this paper, method selecting optimal location for large scale photovoltaic (PV) power plant in Imo State is carried out. Ten local government areas (LGAs) in Imo were selected out of the 27 LGAs in the state. Also, fi...
Scanning for Vulnerabilities in the Security Mechanisms of the Hosts in the Academic Institutions and Government Agencies
In this paper a sophisticated investigation and scanning for vulnerabilities in the security mechanisms of the hosts in the academic institutions and government agencies is made. The port and network scanner are speciali...
Computation of Diffraction Parameter as a Function of Line of Site Percentage Clearance
In this paper, mathematical expression and method for computing diffraction parameter as a function of line of site percentage clearance is presented. The concept of line of site percentage clearance scaling factor is...