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Use of Wide Area, Real Time Positioning with Decimeter Accuracy for Seismic ApplicationsNormal access

Authors: O. Ørpen and J. Lutro
Event name: 65th EAGE Conference & Exhibition
Session: Seismic Acquisition
Publication date: 02 June 2003
Organisations: BGS, EAGE
Language: English
Info: Extended abstract, PDF ( 1.28Mb )
Price: € 20

Summary:
P231 USE OF WIDE AREA REAL TIME POSITIONING WITH DECIMETER ACCURACY FOR SEISMIC APPLICATIONS INTRODUCTION 1 In recent years various applications have emerged both on- and offshore requiring real-time positioning with decimeter accuracy. This level of accuracy has been either impossible or prohibitively expensive to achieve over extended areas using conventional real-time GPS positioning techniques. Differential GPS (DGPS) is an established technique that provides positioning at the 1 meter accuracy level real-time. Conventional DGPS systems typically use single frequency L1 code pseudorangecorrections based on observations at one or more reference stations. The accuracy of conventional DGPS decreases as the distance


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