An efficient approach to mitigate scintillation effects on GPS range-finding in ionosphere
This paper presents the optimal approach to mitigate scintillation effects caused by ionosphere irregularities, principally plasma bubbles that occur mostly in ionosphere in low latitude. The mitigation is made by figuring out the scintillation index for the chosen geographic location, ext...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Faculty of Engineering, International Islamic University Malaysia
2008
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/50176/ http://irep.iium.edu.my/50176/ http://irep.iium.edu.my/50176/ http://irep.iium.edu.my/50176/4/50176.pdf |
| Summary: | This paper presents the optimal approach to
mitigate scintillation effects caused by ionosphere
irregularities, principally plasma bubbles that occur
mostly in ionosphere in low latitude. The mitigation is
made by figuring out the scintillation index for the
chosen geographic location, extracted from the
received real-time RINEX data. Various simulators
and programs are used, mainly MATLAB, such as
Transionospheric Simulator, Scintillation Index
Simulation Program, Power Spectral Density Program,
Read RINEX Observation Program and Bubble
Scintillation Simulation Program. Based on the
detrend signal, MATLAB function that is polyfit will be
used to find the phase and amplitude spectra.
Comparison simulations result with Bubble
Scintillation Simulation Program, which is
programmed to detect plasma bubbles in certain
geographical area under ob
servations, is executed.
The result of this study will provide information for
ionospheric activity and also enable GPS system to
make predictions and necessary adjustments to
maximize its navigations. |
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