[Xastir] An idea for pos error correction

[James Jefferson Jarvis]

On aprsworld I just compare dP/dT to a fixed value ... if the change in 
position divided by the change in time is too big, then I skip the plot 
point. There's a few more corner cases, but it seems to work okay.

-Jim KB0THN


On Sunday 12 December 2004 11:27, Kurt A. Freiberger wrote:
> Occasionally, I get positions that have been corrupted, where the
> apparent position of a station is WAY off the map.  Now, I know that
> WD5IYT-2 hasn't run off onto Kansas; it's a digi.  So, for those
> stations being displayed, could the positions be tracked (since the info
> display shows several previous positions), and any outlandish positions
> be dropped?  It'd sure clean up the trails.  I can see where it would
> eat memory like a Great White potentially; but maybe the database would
> be already available?  Sounds like a fuzzy logic solution...
>
> Just thinking, letting the coffee sink in...
>
> 73/Kurt