GPS

Positional Accuracy of Smartphone vs GPS Receiver

Positional Accuracy of Smartphone vs GPS Receiver

This series of videos describes how to use GPS and GIS in educational instruction–specifically, the whys and hows of gathering field data such as historical buildings, trees, pH in streams, invasive species, social zones on campus, and so on–and then mapping those data to analyze spatial patterns and address issues. This video discusses experiments comparing the positional accuracy of a ...

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Exploring Careers: GIS and GPS

Exploring Careers: GIS and GPS

Trying to get middle and high school students interested in careers in science and technology? This video is the first in a series targeted at students to show them what’s on the cutting edge

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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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