Re: quaternians

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Mike Macedonia (mmacedon++at++crcg.edu)
Mon, 4 Mar 1996 20:17:30 +0000

Angus,

See

http://www-npsnet.cs.nps.navy.mil/npsnet/publications.html

for the copy of

Cooke, Joseph M., Zyda, Michael J., Pratt, David R. and McGhee, Robert B.
"NPSNET: Flight Simulation Dynamic Modeling Using Quaternions," Presence,
Vol. 1, No. 4, pp 404-420.

This might help.

- Mike

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On Mon, 4 Mar 1996, Angus Henderson wrote:

> I've got a nice quaternian based flight dynamics model - but I want the euler
> angles for my instruments. What can I do about the nasty effects I am getting
> when roll angle tends to zero and my acos gets very inaccurate - I see a lot
> of "noise" on roll angle.
>
> ANgus
>
>
>

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