Naslov
GPS Ionospheric Error Correction Models

Autori
Filjar, Renato ; Kos, Tomislav ; Markežić, Ivan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings ELMAR-2006 / Grgić, Mislav ; Grgić, Sonja - Zadar : Hrvatsko društvo Elektronika u pomorstvu (ELMAR), 2006, 215-217

Skup
Multimedia Signal Processing and Communications. 48^th International Symposium ELMAR-2006

Mjesto i datum
Zadar, Hrvatska, 07.06.2006. - 09.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
GPS; ionosphere; error; model

Sažetak
Ionospheric errors are the most influential source of the GPS positioning errors. In an attempt to at least partially improve the GPS positioning process, a global ionospheric correction model is introduced within the standard GPS positioning service. Referred to as the Klobuchar model after its inventor, this model appeared as a compromise between computation complexity and correction accuracy. Unfortunately, the Klobuchar model is capable of correcting up to 70% of ionospheric errors, with particularly poor performance during severe ionospheric disturbances. Wide implementations of satellite navigation systems (GPS in particular) in modern technical systems call for better corrections of the ionospheric influence. This article presents three essential approaches in modelling the GPS ionospheric errors (physical, empirical and dynamic models) and discusses their implementation in GPS-based technical systems.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA