[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: [Paparazzi-devel] Flying Paparazzi near water

From: mark.griffin
Subject: RE: [Paparazzi-devel] Flying Paparazzi near water
Date: Wed, 18 Feb 2009 09:11:44 +0100

There should be no problem with the Paparazzi thermal horizon detection
system whilst flying over water (provided there is no fog or cloud). 
As the temperature of the water (above 0 deg.C) is above that of the sky
(typical zenith temperature is about -15 deg.C), there should be
sufficient temperature difference.
Note that Paparazzi has been successfully flown in the arctic.

-----Original Message-----
From: address@hidden
[mailto:address@hidden On
Behalf Of Martin P
Sent: Wednesday, 18 February 2009 8:26 AM
To: address@hidden
Subject: Re: [Paparazzi-devel] Flying Paparazzi near water

> MAV05 took place in Garmisch-Partenkirchen in the middle of the Alps 
> and Paparazzi took the 4 first places. The accuracy of the attitude 
> estimation is degraded and hence the accuracy of navigation is 
> degraded too, but in a very acceptable way (ie, your circles might be 
> a little oval, but your aircraft wont turn upside down ).

That sounds good. 
I think that what aplies to attitude also aplies to roll. 

I guess that with a sophisticated systems such as paparazzi, the
regulator loops take care about this, although with a little error. 
I guess again that an easier system like the ArduPilot, which takes care
of attitude, roll, course and altitude separately might have troubles. 

Regards, Martin from Austria

Paparazzi-devel mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]