Re: Navigation for the blind (algorithm of redirection)
yes, high accuracy (( 2 cm) consumer gps is possible, but you need access to base stations data , which can be free or paid, depending on the country:
https://novatel.com/an-introduction-to- … ematic-rtk
The cheapest receiver supporting this technology I could find is 200€. Worth it, I say, if the accuracy is really as good and stable as it says.
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