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Location improvement by combining a D-GPS system with on-field vehicle sensors

Abstract : For spatially variable field operations GPS (Global Positioning System) location systems are widely used. The differential GPS does not show a constant accuracy during field work. Position errors occur which could have multiple origins : masks near field borders such as trees, multipaths, temporary loss of differential corrections, or change of satellites used in position determination. Methods of combining two sorts of information, D-GPS and relative positioning, have been developed and the results are discussed. Relative positioning or dead reckoning uses on-field vehicle sensors. Position is given by a doppler radar for forward velocity and a digital compass or a piezoelectric gyroscope for heading. In this work, we have looked for improvement of the location reliability of D-GPS systems but we have also tested solutions that give a better location accuracy.
Mots-clés : GPS GPS DIFFERENTIEL
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Conference papers
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https://hal.inrae.fr/hal-02577363
Contributor : Migration Irstea Publications <>
Submitted on : Thursday, May 14, 2020 - 6:17:36 PM
Last modification on : Wednesday, April 21, 2021 - 8:34:03 AM

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  • HAL Id : hal-02577363, version 1
  • IRSTEA : PUB00004399

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J.M. Le Bars, D. Boffety, L. Trassoudaine, J. Alizon, C. Imberbis. Location improvement by combining a D-GPS system with on-field vehicle sensors. Precision agriculture'97 1st european conference on precision agriculture, Warwick, GBR, 7-10 September 1997, 1997, United Kingdom. pp.585-591. ⟨hal-02577363⟩

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