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GPS

GPS tutorial : Understanding RTK

GPS tutorial : Understanding RTK

Real Time Kinematic (RTK) satellite navigation is a technique used to enhance the precision of position data derived from satellite-based positioning systems, being usable in conjunction with GNSS (GPS,GLONASS, Galileo, BeiDou, GAGAN). It uses measurements of the phase of the signal′s carrier wave, rather than the information content of the signal, and relies on a single reference station to provide ...

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How Does GPS Work?

How Does GPS Work?

You use GPS all the time! But what exactly is it? The story behind this technology is as amazing as the technology itself!

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GPS Basics

GPS Basics

This video has should help you understand some of the basic concepts of GPS, which will be useful when trying to understand more advanced concepts like RTK.

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How To Set Up A GPS Receiver To Collect GIS Compatible Data

How To Set Up A GPS Receiver To Collect GIS Compatible Data

The availability of cheap, handheld GPS receiver units means that, unlike ten to twenty years ago, almost anyone can now collect accurate spatial data. While you can take your GPS unit out of the box and get going almost immediately, if you’re going to use it to collect data that will be used in a GIS, or Geographic Information System, ...

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How To Convert Files from A GPS Into A GIS Compatible Format

How To Convert Files from A GPS Into A GIS Compatible Format

GPS receivers record data in the GPS Exchange Format with the extension .gpx. While some GIS software packages can read this format, the best and mosty consistent way to convert GPS files into a GIS compatible format, such as a shapefile or a Google Earth layer, is to use a program called DNR GPS. This video shows you how to ...

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Largest GPS Drawing in the World

Largest GPS Drawing in the World

This is a story based on a real story in Japan, that a man named Yassan drawn a “LETTER” by GPS logger into Japan islands for his girlfriend. What was the message of the letter? *This artwork is approved by Guinness World Records(TM) as “the Largest GPS Drawing”.

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Using GPS and Bringing the Data into GIS

Using GPS and Bringing the Data into GIS

This webinar demonstrates how to use a consumer-grade GPS receiver to collect data and then bring that data into both QGIS (free and open source) and ArcGIS. DNRGPS (free!) is demonstrated as a tool for downloading and transforming GPS data into projected shapefile format. Steps covered will also allow participants to prepare data for use with online mapping programs such ...

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Tutoriel – Collecte de données par GPS

Tutoriel - Formation en géoréférencement

Formation en GPS afin d’aider les bénévoles qui collectent les données pour le projet de géoréférencement des sentiers et des lieux de pratique de loisir de plein air du Conseil québécois du loisir.  

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Vidéo : Comment fonctionne un GPS ?

Vidéo Comment fonctionne un GPS

Le GPS (Global Positioning System), présent dans de nombreux véhicules terrestres, aériens et marins mais aussi dans une majorité de smartphones, fait désormais partie de notre quotidien. Unisciel et l’Université de Lille 1 nous expliquent, avec le programme Kézako, le fonctionnement de ce système et nous rappelle son histoire dans cette courte vidéo didactique. Depuis 1978, l’armée américaine entretient une ...

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