I have data captured with a GPS tracking unit. Some track have bad/cold starts and the only way to determine the track quality is by using the altitude. Unfortunately I don't have the raw GPS data and only an array or Lat, Long & Altitude.
A typical bad start will have an altitude that start at negative with a steep ramp up to the proper altitude.
Is there any maths gurus and/or libraries (code) out there that can help me with an algorithm to detect and clean my track data?