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Jonas Ardö

Professor

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On the accuracy of the global positioning system-a test using a hand-held receiver

Författare

  • J. Ardö
  • Petter Pilesjö

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