한국측량학회:학술대회논문집 (Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference)
- 한국측량학회 2010년 춘계학술발표회 논문집
- /
- Pages.183-185
- /
- 2010
실시간 GNSS 위치결정을 위한 RINEX 자료 전처리 연구
A RINEX-level Preprocessing for Real-time GNSS Positioning
초록
There are many error sources in GPS signal propagation because the signals do not propagate in vacuum. The GPS observations should be preprocessed before they are used for positioning. The cycle slip and outlier detection algorithms are tested in this study in RINEX level using various linear combinations of the observables. The elbourne-Wubbena (M-W) linear combination has an advantage of long wavelength with low noise, and the geometry-free and ionosphere-free linear combinations are used as well to clean the measurements.