#1
Oct1206, 05:02 AM

P: n/a

Say my aircraft is in a current orientation of
phi (roll, xaxis) = 0 degrees theta (pitch, yaxis) = 30 degrees psi (yaw, zaxis) = 20 degrees which corresponds to a quaternion Q = 0.952 + 0.045i + 0.255j + 0.168k But my desired orientation is phi = 0 degrees theta = 0 degrees psi = 0 degrees OR Q = 1 + 0i + 0j + 0k If I am thinking in terms of Euler notation, then I know there is a pitch error of 30 degrees and need to deflect the elevator to correct this. Likewise, the 20 degree yaw error must be countered by rudder deflection. However, if I'm thinking in terms of quaternions, then how can I go about this? Thanks in advance, weg 


Register to reply 
Related Discussions  
quaternion question  General Math  0  
[SOLVED] a (hopefully) simple quaternion question  General Physics  9  
a (hopefully) simple quaternion question  General Physics  0 