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A Study On The Low-latitude Ionosphere Drift Based On Lonospheric Scintillation Observations Of UHF Satellite Signal

Posted on:2007-01-19Degree:MasterType:Thesis
Country:ChinaCandidate:Y L ZhangFull Text:PDF
GTID:2178360185461054Subject:Electromagnetic field and microwave technology
Abstract/Summary:PDF Full Text Request
The ionosphere is a non-linear response system. Different kinds of input will trigger different final perturbations. The ionosphere F region is one of the most important region in the ionosphere. The night-time irregularities in this region can affect nearly all-frequency radio waves propagation through them. Ionospheric scintillation can be observated frequently in low-latitude of China, so it is very important to know the physical mechanism of night-time F region plasma instability and irregularities in it. It is necessary to study the movement of the ionospheric irregularities through many different methods which is very important for the production of the ionospheric irregularities.In this thesis, three Ionospheric Scintillation Monitors (ISM) are installed in Haikou, Hainan Province of the P.R. of china, which locations are separated about one hundred meters apart, the drift velocity of ionospheric irregularitie can be deduced by analyze the cross-correlation of scintillation signals at three monitors to determine the drift time between monitors. The measured result is consistent with that of DPS-4, which is obviously that ionospheric transmeridional drift is east in nighttime, and ionospheric meridional drift is south. The mearement has very high precision and temporal resolution , it is also useful with the periodic disturbance.
Keywords/Search Tags:low-latitude ionosphere F, ionospheric scintillation, ionospheric drift, cross-correlation
PDF Full Text Request
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