PX4-Autopilot VS dji-aerial-georeferencing

They are widely used in narrow circles :)

Two of (arguably the best) open source RC aircraft flight controllers (ArduPilot and PX4) are using extended Kalman filters in their state estimators (essentially sensor fusion that provides attitude/position estimate):

https://github.com/ArduPilot/ardupilot/tree/master/libraries...

https://github.com/PX4/PX4-Autopilot/blob/main/src/modules/e...

I'm not that familiar with cleanflight/betaflight/inav scene to know what the FPV racer flight controllers use.

Actually, even the General Aviation pilots who actually manually manage their own load-shedding during a mission would quite like automated power distribution and management systems... and if you felt like taking on that sort of work as a hobby project to cut your teeth, I bet the guys at the (open-source) PX4 project would bite your hand off...

As a flight pilot engineer you have to find a sweet spot and balance logging too much and too little. Writing logs to an SD card has huge costs that come with it, that's why you don't want to log too much. Logging too little and you can't debug issues later on properly.

PX4 also has lots of "topics" logged at around 1/10, e.g. hover thrust estimate every 100ms:

https://github.com/PX4/PX4-Autopilot/blob/main/src/modules/l...

Okay, but nowadays most people talk about “Pixhawk” as an open-standard hardware platform and PX4 as the software. The source code is at https://github.com/PX4/PX4-Autopilot and they call themselves “PX4 Autopilot Software”.

As an example, PX4 is a popular open source drone autopilot software: https://github.com/PX4/PX4-Autopilot

I am working as a Remote Embedded Software developer for quite a while now and there is no obstacle in Remote work. If I am missing anything, parts are arriving in under the week. That said, I never had a better work-life balance in the last 10 years. Anyone who said Embedded is not possible to do remotely just check any open source flight controller project (in my case PX4).

How does this compare with the data you get from Airdata?

When I was working on an aerial georeferencing project[1] I found that the on-device flight logs didn’t contain all the info in the serverside logs (eg heading, gimbal orientation, GPS coords, altitude)

[1] https://github.com/roboflow/dji-aerial-georeferencing

You can also do it if you know the height and field of view (I open sourced code to do this from drone videos here: https://blog.roboflow.com/georeferencing-drone-videos/ )

Yeah that’s pretty much it. I wrote about something similar for translating pixel coordinates from drone videos to GPS coordinates: https://blog.roboflow.com/georeferencing-drone-videos/

I'm not the OC (that'd be u/aloser). Based on the blog post breakdown (https://blog.roboflow.com/georeferencing-drone-videos/), it's a recorded video matched up with the flight log to identify the location of certain objects.

I published the code here: https://github.com/roboflow-ai/dji-aerial-georeferencing

Had a lot of fun building this; did an in-depth writeup here as well: https://blog.roboflow.com/georeferencing-drone-videos/