How to use the EKF2 replay?

PX4 Autopilot Flight Controllers đź’»
1

Hi:
I have found the function of EKF_replay in ecl/EKF/matlab, and try to analyse the .ulg file using matlab, but there’s a problem.
It is said in readme.txt that “Convert the .ulg log file to .csv files using the PX4/pyulog python script pyulog/ulog2csv.py at main · PX4/pyulog · GitHub”, but when I run the ulog2csv.py in the terminal of UBUNTU , it reports like this:

So I want to know how to use the ulog2csv.py? and under what path should the .ulg file be placed?
Thanks!

2

I just tried out the EKF_replay in Matlab the other day. I used the sample/demo data provided and it seemed to work flawlessly.

However, I kinda got stuck trying to solve the problem of that Python conversion. I was trying to see if it all can be done from within Matlab itself (.ulg > CSV). I need to find some time to try and understand the python script and see if I can port it to Matlab. Maybe this is one way to do it. But that only works if you already have CPython installed (v 2.7/3.5/3.6).

Sorry I am not of any help but I’ll follow this thread to see what went wrong there. Best of luck with someone helping you fix that.

3

I’ll try the way, thanks!

4

Hi, where can we find the test data used in EKF_replay? By the way, I try the way in the readme.txt, https://drive.google.com/file/d/0By4v2BuLAaCfSW9fWl9aSWNGbGs/view?usp=sharing that I couldn’t open.