Abstract
Ionosphere is part of the atmospheric layer located between 50 to 1000 km above the earth's surface which consists of electrons that can influence the propagation of electromagnetic waves in the form of additional time in signal propagation, this depends on Total Electron Content (TEC) in the ionosphere and frequency GPS signal. In high positioning precision with GPS, the effect of the ionosphere must be estimated so that ionospheric correction can be determined to eliminate the influence of the ionosphere on GPS observation. Determination of ionospheric correction can be done by calculating the TEC value using dual frequency GPS data from reference stations or models. In making the TEC model, a polynomial function is used for certain hours. The processing results show that the maximum TEC value occurs at noon at 2:00 p.m. WIB for February 13, 2018 with a value of 35,510 TECU and the minimum TEC value occurs in the morning at 05.00 WIB for February 7, 2018 with a value of 2,138 TECU. The TEC model spatially shows the red color in the area of Surabaya and its surroundings for the highest TEC values during the day around 13.00 WIB to 16.00 WIB.
Highlights
Ionosphere is part of the atmospheric layer located between 50 to 1000 km above the earth's surface which consists of electrons that can influence the propagation of electromagnetic waves in the form of additional time in signal propagation, this depends on Total Electron Content (TEC) in the ionosphere and frequency Global Positioning System (GPS) signal
Ionospheres contain electrons that can affect the propagation of electromagnetic waves in the form of additional travel time in signal propagation, this depends on Total Electron Content (TEC) in the ionosphere and GPS signal frequency
The description of the VTEC model is done by limiting the Surabaya area and its surroundings by presenting a table of corresponding VTEC values of the VTEC value that has been obtained
Summary
Ionosphere is part of the atmospheric layer located between 50 to 1000 km above the earth's surface which consists of electrons that can influence the propagation of electromagnetic waves in the form of additional time in signal propagation, this depends on Total Electron Content (TEC) in the ionosphere and frequency GPS signal. Ionospheres contain electrons that can affect the propagation of electromagnetic waves in the form of additional travel time in signal propagation, this depends on Total Electron Content (TEC) in the ionosphere and GPS signal frequency. The biggest ionospheric effect is on the speed of the signal, which will directly affect the value of the distance from the observer to the satellite.
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