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Topic: understanding the rotation matrix (Read 386 times) previous topic - next topic

anilkunchalaece

May 03, 2018, 12:03 pm Last Edit: May 03, 2018, 12:04 pm by anilkunchalaece
Hi, I am trying to understand the dynamics of quad copter.
 
in the following post : http://charlestytler.com/modeling-vehicle-dynamics-euler-angles/

author stated We can describe the other body frame axes with trigonometry as a function of the inertial components and the angle of rotation. But i am having a hard time understanding

[b1;b2;b3] = [cos(psi), sin(psi), 0; -sin(psi), cos(psi), 0; 0, 0 1] [x;y;z]

can someone explain how that derived.

I found other reference http://www.sunshine2k.de/articles/RotationDerivation.pdf but i don't think both are same.

any references to Rotational Matrices are welcome.
--
Check Arduino  Tutorials here
https://www.youtube.com/playlist?list=PLjzAdjfnefPzBOijmWo9t6-S2x2jye2fs

Kunchala Anil

jremington

Google "rotation matrices" for several hundred thousand links to various tutorials, and start working your way down the list.

Or check out a book on linear algebra from your local library.

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