INAV & EmuFlight Matrix Filter - how does it work?

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INAV 2.5 and EmuFlight 0.3.0 (and newer) will get a new, improved dynamic filter (dynamic gyro notch) which I call the Matrix Filter. It's a cool name you have to admit!
In one of my previous videos, I showed how it works using Blackbox example: • Matrix Filter - the ne...
Today, let's take a deeper dive into a topic. In this video, I will show you how Matrix Filter works and how it differs from regular Dynamic Gyro Filter.

[@uavtech]

Good work. Some of the boyz are looking at this in BF. We have a HEX in BF with Matrix filter and I'm going to load up on my dual FC rig to compare against the current dynamic notch. Same flight same noise (of course, within a pretty tight deviation). We'll see what we get.
That will be on a 5". But my hunch is on bigger rigs there is more of a benefit.
Question: In iNAV is there a way to turn off the cross axis notches for A-B comparisons with one build of firmware?

[@FPVUniversity]

I really regret I can not fly now to work on this.

[@timwsac]

Thanks for the great work that you do Pawel it's very much appreciated my friend, and also thanks for keeping us entertained in these trying times, stay safe.

[@mikenomatter]

Read conversaion about it on BF repo. One of the point was why there is correlation between the axes. I immidiately make simple test: took my quad with ligging enabled anh hit it with a pencil frome one side pitch/roll/yaw - and boom, there is definetely correlation between different axes gyro measurements.

[@DronoTron]

The source of the infamous midthrottle oscilations we have when cruising is in fact when the 4 motors run at the same rpm, This might help reduice or eliminate this issue which is fantastic!

[@josephbove7477]

Great job and excellent video. Looking forward to additional commentary. Stay safe.

[@hristiantodorov3923]

Very informative video! Could you make a video how PIDs are trained for a quad ?

[@nerdCopter]

+1👍 watched this a dozen times in past and present, and surely in future too :)
do you have a recommendation for `min`? -- in other words do you like the cutoff below your peak motor noise, or do you prefer to use this for high frequencies? (or i suppose it depends on the quad)

[@faktalist]

Hi, when inav ready to VTOL?

[@MkmeOrg]

Awesome stuff Pawel.

[@darkofc]

👍😊 not flying multirotors (yet) - but very interesting subject and explanation - thanks !

[@Gosuminer]

Awesome. I only wonder: 4 motor frequencies but only 3 notch filters... Would it be possible to detect more than one peak per axis?

[@FPVUniversity]

Someone in Betaflight is working on that. Or at least has an idea how to do it

[@jankidood]

Thanks..and I am wondering will there be any addition to inav in coming future related to connect raspberry pi board to communicate telemetry /live video or to control drone on 4g/lte network or wifi hot-spot..or you suggest.. That only way around is to flash ardupilot on matek f765 ?

[@FPVUniversity]

INAV already support various telemetry porotocols. Just pick software that can read them and transmit to RPi and you are golden

[@Joe_Sa_3rd]

Great explanation

[@FPVUniversity]

thank you

[@flugzeugvideos]

There are no matrix filters with omnibus f3!?

[@edouardmalot51]

If Emu accept this filter, I really don't understand them "blablabla" about rpm filter and cpu load

[@Fleche_FPV]

Cool !