William Premerlani's Discussions (716)

Discussions Replied To (706) Replies Latest Activity

"Anand, The method computes true wind vector in earth frame of reference. It has been…"

William Premerlani replied Jul 26, 2014 to Wind speed/dir from APM?

15 Oct 13, 2015
Reply by Dragu Mihai

"Pedals2Paddles, As far as I know, the method referenced by Sam does not work for mul…"

William Premerlani replied Jul 26, 2014 to Wind speed/dir from APM?

15 Oct 13, 2015
Reply by Dragu Mihai

"Mark, Your plots do not make any sense to me, either. Hopefully someone from the APM…"

William Premerlani replied Jul 15, 2014 to Without airspeed sensor, how does APM 2.6 use airspeed?

9 Nov 16, 2014
Reply by weiqiang

"Mark, Early versions APM used the direction cosine matrix and this method. The basic…"

William Premerlani replied Jul 15, 2014 to Without airspeed sensor, how does APM 2.6 use airspeed?

9 Nov 16, 2014
Reply by weiqiang

"Rob, In the case of the UDB sold by SparkFun, the export restrictions apply only to…"

William Premerlani replied May 13, 2014 to 3DRobotics temporarily stops shipments outside of US and Canada

490 Sep 2, 2014
Reply by Graham Hill

"Rob, I can speak to your question about export restrictions on UDB sold by SparkFun.…"

William Premerlani replied May 13, 2014 to 3DRobotics temporarily stops shipments outside of US and Canada

490 Sep 2, 2014
Reply by Graham Hill

"Hi Gary, Yes indeed, the UAV development board is export controlled, but the process…"

William Premerlani replied May 11, 2014 to 3DRobotics temporarily stops shipments outside of US and Canada

490 Sep 2, 2014
Reply by Graham Hill

"Hi Leonardo, I am glad it was something simple. I find that, in these sorts of discu…"

William Premerlani replied Jan 4, 2014 to DCM matrix implementation problem

13 Jan 9, 2014
Reply by Harry

"Leonardo, Just to make sure you understand the basics. The direction cosine matrix r…"

William Premerlani replied Jan 4, 2014 to DCM matrix implementation problem

13 Jan 9, 2014
Reply by Harry

"Alex, The cross products do not transform the rotation rate vector from one frame to…"

William Premerlani replied Nov 2, 2013 to Rotating Gyro vector using DCM for PID control

8 Nov 2, 2013
Reply by Alex Zarenin

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