Re: [Paparazzi-devel] imu

[Christophe De Wagter]

Hi,

The ahrs=IC is much faster and has better resolution but still misses GPS feedback for fixedwings during the turns, while on the other hand attitude=DCM misses (good) magnetometer feedback... 

attitude was the old name, the scientific name is AHRS so I presume soomer or later we will change all attitudes to ahrs. (the sooner the less people will get in trouble...)

If you know a good place to buy 32h days let me know and I'll fix both.

-Christophe 

On Tue, Jun 21, 2011 at 12:39 PM, <address@hidden> wrote:

@Felix   thanks for the response,

i solved the problem with a really dirty work around of building a second ir-plane with the same flightplan
not nice but it s something
so i totally agree  it would be nice to have an imu simulation 


but maybe someone  can help with an another question 
the implementation of the imu code for fixed wing should be something like
 <subsystem name="imu" type="aspirin_i2c"/> <subsystem name="ahrs" type="ic">
 <define name="AHRS_GRAVITY_UPDATE_COORDINATED_TURN" />

 unfortunately this was not working for me, the horizont wasn t staple during turns 

so i tried the example from ppzuav with
 <subsystem name="attitude" type="dcm">

wich is working just fine, thats the code i used to play some days ago 

so this should that be a subsystem ahrs instead of attitude?
it is nice code but on the wrong place or did i misunderstood something?

Tobi

 
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