I have developed a GPS Tracking device it is working fine when the receiver is in motion, when it stationed in a position for couple of hours i get some drift for around 10-15meters. The receiver send different lat/lon every 30seconds, which makes it impossible for me to calculate the total IDEAL time of the tracker device.
Is there any GPS accuracy filter which can be implemented in my software to overcome this issue?
Best Answer
I think what you are looking for is Differential Correction (Link1, Link2).
Generally speaking you would post-process your GPS data by comparing your location (at a particular timestamp) with the location of a known, surveyed GPS receiver base station. You would then adjust your GPS locations with the offset from the actual and measured coordinates of the GPS at the base station.