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This paper presents analysis of ionospheric scintillation on GPS signal (1575.45 MHz) by using the GSV4000 GPS receiver installed at KMITL. The characteristic of ionospheric scintillation on GPS signal are analyzed by employing S4 index to identify the amplitude scintillation and sigmaPhi(60 sec) to identify the phase scintillation. From the results, we found that the ionospheric scintillation phenomena...
This paper presents the effects of Sumatra-Andaman earthquake (26 December 2004) on the total ionospheric electron content (TEC) by using the TEC meter (JAVAD) installed at KMITL. From the results, we found that the total ionospheric electron content enhancement at the time of this earthquake is higher than other days about 7 TEC units. Furthermore, the study includes the effect of this phenomenon...
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