Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah

The ionosphere plays a vital role in radio communication and have own characteristics depend on their region. This is dependent on the solar and geomagnetic activity of the earth. The purpose of this project is to investigate TEC parameter at different regional such as northern, equatorial and south...

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Main Author:	Abdullah, Ahmad Nizam
Format:	Thesis
Language:	English
Published:	2009
Subjects:	Electron
Online Access:	https://ir.uitm.edu.my/id/eprint/69332/1/69332.pdf
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spelling	my-uitm-ir.693322023-03-27T07:08:03Z Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah 2009 Abdullah, Ahmad Nizam Electron The ionosphere plays a vital role in radio communication and have own characteristics depend on their region. This is dependent on the solar and geomagnetic activity of the earth. The purpose of this project is to investigate TEC parameter at different regional such as northern, equatorial and southern region based on different ionospheric layers. The measurements of TEC were extracted from GPS data supplied by Department of Survey and Mapping Malaysia (JUPEM), Australian Regional GPS Network and Northern California Earthquake Data Center which in RINEX format. The regional of TEC were analyzed in different time. The factors that influence the value of TEC are depending to the altitude, time and region (latitude). The TEC is proportional with altitude and inverse proportional with latitude. So that, it is vital to have different ionospheric propagate at different region. At November, the incoming solar radiation is more directly to Northern hemisphere surface and less at Southern hemisphere . So that the ionization process at northern region is more than the ionization at Southern region. The analysis TEC is important to monitor behavior of the ionosphere as well as for practical application like satellite tracking, satellite to satellite communication, satellite to ground communication and all communication system by using satellite like satellite TV and satellite telecommunication. GPS signals can be used to extract ionospheric parameters such as TEC. Several factors affect the quality of real-time ionospheric delay estimation, such as multipath, GPS satellite and receiver L1/L2 differential delays, cycle slips, etc. Dual frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observable related to the slant TEC along the satellite receiver line of sight. This results in the absolute differential delay and the remaining noise is discarded. The TEC itself is hard to accurately determine from the slant TEC because this depends on the sunspot activity, seasonal, diurnal and spatial variations and the line of sight which includes knowledge of the elevation and azimuth of the satellite etc 2009 Thesis https://ir.uitm.edu.my/id/eprint/69332/ https://ir.uitm.edu.my/id/eprint/69332/1/69332.pdf text en public degree Universiti Teknologi MARA (UiTM) Faculty of Electrical Engineering Othman, Noriza
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Othman, Noriza
topic	Electron
spellingShingle	Electron Abdullah, Ahmad Nizam Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
description	The ionosphere plays a vital role in radio communication and have own characteristics depend on their region. This is dependent on the solar and geomagnetic activity of the earth. The purpose of this project is to investigate TEC parameter at different regional such as northern, equatorial and southern region based on different ionospheric layers. The measurements of TEC were extracted from GPS data supplied by Department of Survey and Mapping Malaysia (JUPEM), Australian Regional GPS Network and Northern California Earthquake Data Center which in RINEX format. The regional of TEC were analyzed in different time. The factors that influence the value of TEC are depending to the altitude, time and region (latitude). The TEC is proportional with altitude and inverse proportional with latitude. So that, it is vital to have different ionospheric propagate at different region. At November, the incoming solar radiation is more directly to Northern hemisphere surface and less at Southern hemisphere . So that the ionization process at northern region is more than the ionization at Southern region. The analysis TEC is important to monitor behavior of the ionosphere as well as for practical application like satellite tracking, satellite to satellite communication, satellite to ground communication and all communication system by using satellite like satellite TV and satellite telecommunication. GPS signals can be used to extract ionospheric parameters such as TEC. Several factors affect the quality of real-time ionospheric delay estimation, such as multipath, GPS satellite and receiver L1/L2 differential delays, cycle slips, etc. Dual frequency carrier-phase and code-delay GPS observations are combined to obtain ionospheric observable related to the slant TEC along the satellite receiver line of sight. This results in the absolute differential delay and the remaining noise is discarded. The TEC itself is hard to accurately determine from the slant TEC because this depends on the sunspot activity, seasonal, diurnal and spatial variations and the line of sight which includes knowledge of the elevation and azimuth of the satellite etc
format	Thesis
qualification_level	Bachelor degree
author	Abdullah, Ahmad Nizam
author_facet	Abdullah, Ahmad Nizam
author_sort	Abdullah, Ahmad Nizam
title	Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
title_short	Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
title_full	Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
title_fullStr	Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
title_full_unstemmed	Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah
title_sort	investigation of regional total electron content (tec) values at different ionospheric layers / ahmad nizam abdullah
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Electrical Engineering
publishDate	2009
url	https://ir.uitm.edu.my/id/eprint/69332/1/69332.pdf
_version_	1783735866845298688

Investigation of regional total electron content (TEC) values at different ionospheric layers / Ahmad Nizam Abdullah

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