The parameter GPS_NAVFILTER in the documentations is explained just a little: https://ardupilot.org/rover/docs/parameters.html#gps-navfilter-navigation-filter-setting
I tried a deeper dive and found the following explanations in a russian wiki:
GPS_NAVFILTER.pdf (71.6 KB)
The default for rover, plane and boat is 8 - that means “extremely dynamic 4G-aitcrafts”.
So I’m asking myself, if it would be useful to set that parameter to 6 or 5 e.g. for a boat?
Or to 6 or 7 for a sailplane?
I tested that on desk with a value of 6, and in my opinion the GPS is ready in a shorter time and the position will be hold much better than with a value of 8.
But I don’t know the exact background of that parameter. Will it destroy any necessary functionality if I use 6 or 5?
So could anybody explain the background please.
And if my thinking is correct - what value makes sense for a boat or a sailplane?
Has anybody tested that values?
Thanks in advance