Is there any budget solution to operate a drone indoors? I want to use it with Pixhawk 2.4.8. As GPS does not work indoors, autonomous flight becomes impossible. So, is there any solution to provide a GPS signal indoors, so that the drone can get its positional data? Thank you for your time.
Solutions are starting to appear that use Ultra-wideband technology (same tech used by 'Smart Tags') for indoor/GNSS-denied locations. Some even output NMEA sentences to imitate a GNSS receiver, to easily integrate to existing autopilots.
I've not used this so can't recommend any examples (or how well/if it works), but a web search for 'UWB drone positioning' gives a number of results as a start point for further research.