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A (hopefully) simple quaternion question 
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#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 


#2
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#3
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#4
Oct1206, 05:02 AM

P: n/a

A (hopefully) simple quaternion question
I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#5
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#6
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#7
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#8
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#9
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


#10
Oct1206, 05:02 AM

P: n/a

I think you want to take the (quaternion) inverse of the first one. and
figure out the (yaw, roll, pitch) for that one. 


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