Performance analysis of WA-DGNSS in Korea with the selection of reference stations

Han, Deokhwa; Yun, Ho; Kee, Changdon

Journal of Navigation and Port Research 2013;37(4):367-373.
Published online August 31, 2013.

한국에서의 기준국 네트워크 선정에 따른 GNSS 광역보정시스템 성능 분석

한덕화, 윤호, 기창돈

Performance analysis of WA-DGNSS in Korea with the selection of reference stations

Deokhwa Han, Ho Yun, Changdon Kee

Abstract

Wide area differential GNSS(WA-DGNSS) collects GPS measurements from the several reference stations and estimates 3-D satellite orbit error, satellite clock error, ionospheric delay. These correction messages are broadcasted to user, then user can have more accurate and reliable position estimates. The performance of WA-DGPS can be changed depending on the position of reference stations. To select proper reference stations, performance analysis with the change of reference stations is necessary. In this paper, changing the geographical location of reference stations, we carried out simulation based test and show the performance of WA-DGNSS in Korea.

Key Words: GNSS;Wide Area-DGNSS;Wide area reference station;accuracy;integridy