Monday 30 January 2017

qgis - How to calculate turn rate from a GPS log?


I'd like to calculate a rate of turn from a GPS log (GPX file).



Each trackpoint in a GPX track has location and time, and in addition to speed (a common calculation and sometimes embedded in a tracklog) I'd like to calculate the rate at which the aircraft or vehicle is turning, for each trackpoint. That said, I suspect the 'rate of turn' is more accurately reflected by a moving average over several points, and would be interested to see if anyone has examined that.


Sample GPX file here.


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Open-source solutions in R or QGIS preferred!




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