Mitigate the GPS position error by neural network technique

Nontasud, Sarawut; Leelaruji, Nipha

doi:10.1109/SICE.2008.4655189

Mitigate the GPS position error by neural network technique

Author(s)

Nontasud, Sarawut

Leelaruji, Nipha

Date Issued

December 1, 2008

Type

Conference Paper

DOI

10.1109/SICE.2008.4655189

Abstract

This paper presents the error reduction of GPS receiver due to ionospheric irregularities by neural network technique. Normally, when GPS signal passed through the irregularities of ionosphere the scintillation will be appeared. It causes to latitude and longitude error from reference position or pseudo-range error more than 10 meters. GPS position error depends on the strength of scintillation index or S4 which due to total electron content in the ionosphere (TEC).We used the measurement data which include the S4 index to analyze and correct the position error by neural network technique. The result of this research we found the position error can reduce to less than 1 meter. The positions average close to correct position. © 2008 SICE.

Citation

Proceedings of the SICE Annual Conference, 3060-3064, 2008

Subjects

Ionosphere

Neural network

Scintillation