Ye well maybe it's a domain thing. I do driveline programming for cars.
As soVeryTired wrote "In general I find Kalman filters a little suspect where the underlying dynamics of the system can change over time, and when the physical process that gives rise to the dynamics isn't known."
This maybe applies in a less degree to radars etc?
In general we use only one sensor source at a time for eg. rpm rather then fusing them. If one is obvously off just select another. Maybe it's rather about how exact you need the estimate to be.
As soVeryTired wrote "In general I find Kalman filters a little suspect where the underlying dynamics of the system can change over time, and when the physical process that gives rise to the dynamics isn't known."
This maybe applies in a less degree to radars etc?
In general we use only one sensor source at a time for eg. rpm rather then fusing them. If one is obvously off just select another. Maybe it's rather about how exact you need the estimate to be.