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Petter Pilesjö

Petter Pilesjö

Professor

Petter Pilesjö

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

Author

  • 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.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • Centre for Geographical Information Systems (GIS Centre)

Publishing year

1992-11

Language

English

Pages

3229-3233

Publication/Series

International Journal of Remote Sensing

Volume

13

Issue

16

Document type

Journal article

Publisher

Taylor & Francis

Topic

  • Remote Sensing

Status

Published

ISBN/ISSN/Other

  • ISSN: 0143-1161