Hi everyone,
I’m working on a drone application where GPS is either unavailable or unreliable (e.g. indoors or under heavy jamming). I’m looking for any kind of “return to home” solution without GPS.
Is there any built-in way — or has anyone implemented a method — to return the drone to the takeoff point using only heading/azimuth and IMU-based dead reckoning?
For now we use our own system, but i heard that there must be some feature inside Ardupilot. Thank you!
Use search on the forum here for Dead Reckoning and you will find this lengthy post where a very expensive sensor suite was used so best case:
Dead Reckoning
And go here for the practical methods Non-GPS Navigation
My article is mostly about planes. You might want to check out Dead Reckoning failsafes in Copter Dead Reckoning Failsafe — Copter documentation
Yes, that’s the right link, thanks. My point was that even with an IMU chip that cost more than many flight controllers ($>$400 for the IMU) the performance expectation should be tempered. Or is that not the conclusion?
Thank you, I know about this feature. But im mostly interested in compass orientation (eg azimuth), due to long distances of our missions. Was there any experience in this way?