DOI Number : 10.5614/itbj.sci.2006.38.2.6
Hits : 10

Pemodelan TEC Regional dari data GPS stasiun tetap di Indonesia dan Sekitarnya

Buldan Muslim, Hasanuddin Z. Abidin2), The Houw Liong3), Wedyanto Kuntjoro2), Cecep Subarya4), Heri Andreas2) & M. Gamal2)

 

1)Kelompok Dinamika Atmosfer Atas, Bidang Ionosfer dan Telekomunikasi

Pusat Pemanfaatan Sains Antariksa, LAPAN, Jl. Dr. Junjunan 133 Bandung 40173

2)Kelompok Keahlian Geodesi dan Geomatika, Program Studi Teknik Geodesi

Fakultas Teknik dan Linkungan, Institut Teknologi Bandung, Jl. Ganesha 10 Bandung

3)Program Studi Fisika, Fakultas Matematika dan Ilmi Pengetahuan Alam

Institut Teknologi Bandung, Jl. Ganesha 10 Bandung

4) Bidang Geodinamika, Pusat Geodesi dan Geodinamika, Badan Koordinasi Survei dan Pemetaan Nasional, Jl. Raya Jakarta - Bogor Km 46, Cibinong 16911


Abstract.

Ionosphere affect propagation of electromagnetic waves through it by adding a transmission delay time. In GPS positioning and navigation, ionospheric delay is largest source of error after error from Selective Availability (SA) was turned off. For GPS positioning precisely ionospheric effect must be estimated so ionospheric correction can be determinated to eliminate ionospheric effect on GPS observation. In positioning by using GPS single frequency, ionospheric correction can be obtained from GPS dual frequency receiver at reference station or model. This paper describes method of determination and modeling of regional total electron content (TEC) from continuous GPS station in Indonesia and its around. Spatial model of TEC at certain time is estimated by using polynomial function. Diurnal variation of polynomial model coefficient at certain hour from 00.00 23.00 UT is estimated with Fourier expansion.



Keywords: Regional; model; calibration; total electron content; code and phase combination; ionospheric bias and GPS.

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