Jonas Ardö
Professor
On the accuracy of the global positioning system-a test using a hand-held receiver
Författare
Summary, in English
This study aims to evaluate the accuracy of location (x, y and z) using a Magellan GPS NAV 1000 receiver. The position of a known reference point was compared with 50 fix points measured in two-dimensional (2D) mode (x, y) and with 50 fix points measured in three-dimensional (3D) mode (x, y and z). The mean errors and the root mean square errors (RMSE) in the Euclidian distances between the reference poinl and the measured fix points were 17.9m and 20.0m respectively for the 2D measurements, and 25.7m and 34.8m respectively for the 3D measurements. The mean error in elevation was 0-2 m and the corresponding RMSE was 39.1 m. The study indicates a significant difference in the total error (Euclidian distance) between points obtained with different signal qualities and different geometric qualities. The error in the Euclidian distance never exceeded 44.0 m using 2D mode, which suggests that the Magellan GPS NAV 1000 receiver should be a useful supportive tool for many remote sensing applications.
Avdelning/ar
- Institutionen för naturgeografi och ekosystemvetenskap
- Centrum för geografiska informationssystem (GIS-centrum)
Publiceringsår
1992-11
Språk
Engelska
Sidor
3229-3233
Publikation/Tidskrift/Serie
International Journal of Remote Sensing
Volym
13
Issue
16
Dokumenttyp
Artikel i tidskrift
Förlag
Taylor & Francis
Ämne
- Remote Sensing
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0143-1161