Evaluate and develop high-performance GPS navigation using free GPS software

Examensarbete för masterexamen

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12380/218271
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Type: Examensarbete för masterexamen
Master Thesis
Title: Evaluate and develop high-performance GPS navigation using free GPS software
Authors: Videkull, Ronny
Abstract: Synthetic Aperture Radar (SAR) mounted on an aircraft allows us to create images of landscapes. In order to obtain such high resolution images it is crucial to accurately determine the flight-path of the instrument's platform. For centimeter-level accurate positioning of the aircraft, a differential positioning technique based on Global Navigation Satellite Systems (GNSS) is used. This method, also known as Real-Time Kinematic (RTK) positioning, utilizes carrier phase signals and relies on a second (fixed) "base station" with well known coordinates. In this thesis the accuracy of the open-source GNSS library RTKLIB was evaluated. A comparison with results from a commercial software has shown that RTKLIB is able to provide similar positioning performance. In general it could be concluded that the accuracy of RTKLIB is sufficient for the given SAR application. Moreover, a batch-driven processing chain utilizing RTKLIB was realized in order to minimize manual interactions. The thesis was conducted at Saab AB.
Keywords: Grundläggande vetenskaper;Fasta jordens fysik;Signalbehandling;Fjärranalysteknik;Basic Sciences;Solid earth physics;Signal Processing;Remote Sensing
Issue Date: 2015
Publisher: Chalmers tekniska högskola / Institutionen för rymd- och geovetenskap
Chalmers University of Technology / Department of Earth and Space Sciences
URI: https://hdl.handle.net/20.500.12380/218271
Collection:Examensarbeten för masterexamen // Master Theses

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