Calculating distance in m in xyz between GPS coordinates that are close together

Asked Oct 23 '14 at 09:09

Active Oct 27 '14 at 20:17

Viewed 1,007 times

I have a set of GPS Coordinates and I want to find the speed required for a UAV to travel between them. Doing this by calculating distance in x y z and then dividing by time to travel - m/s.

I know the great circle distance but I assume this will be incorrect since they are all relatively close together?

Is there an accurate way to do this?

edited Oct 27 '14 at 20:17

Chris W

15,720
2
29
47

asked Oct 23 '14 at 09:09

Buzz92

Define 'close' - hundreds of miles? meters? What, if any GIS software are you using / have access to? Is z a significant factor? – Chris W Oct 23 '14 at 23:05
Within 10m. I am not using GIS. Programming it myself as part of a matlab programme. I am thinking I can use a flat earth approximation. – Buzz92 Oct 27 '14 at 16:14
possible duplicate of Distance between GPS coordinates – Chris W Oct 27 '14 at 20:19
1

Within 10m I'd just use Euclidean distance -- not because it's more accurate than great circle distance for small measurements, but because the math is simpler :) – Erica Oct 28 '14 at 00:35

Calculating distance in m in xyz between GPS coordinates that are close together

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