Low Cost RTK GPS

Software Libraries

Software libraries exist for turning a low cost GPS receiver into an RTK GPS. They assume you have a receiver capable of providing phase information and a connection to a NTRIP service

• GoGPS: developed at Politecnico di Milano which supports thess hardware/services
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Here you can find some documents evaluation the result you might obtain by using these libraries

• Kjeld Jensen, Morten Larsen, Tom Simonsen and Rasmus N. Jørgensen. Evaluating the performance of a low-cost GPS in precision agriculture applications. RHEA-2012 - First International Conference on Robotics and Associated High-Technologies and Equipment for Agriculture September 19-21, Pisa, Italy

Hardware

You could built your own, but it has to be properly designed since it requires to handle RF parts. These resources might become the useful:

Receivers

• Evaluation kit from ublox such as the EVK-6T (295 euros on 04/12/2012) or the EVK-6PPP (295 Euros on 04/12/2012). With case and antenna.
• UBLOX NEO-6P Precise Point Positioning Reference Board (169.99 USD on 04/12/2012) with SMA antenna connectors for UAV systems, Robots, RC, FPV or other projects. You can buy also an Active GPS Antenna (19.99 USD on 04/12/2012)
• https://www.optimalsystem.de