dcm2alphabeta - Convert direction cosine matrix to angle of attack and sideslip angle
Syntax
[a b] = dcm2alphabeta(n)
Description
[a b] = dcm2alphabeta(n) calculates
the angle of attack and sideslip angle, a and b,
for a given direction cosine matrix, n. n is
a 3-by-3-by-m matrix containing m orthogonal
direction cosine matrices. a is an m array
of angles of attack. b is an m array
of sideslip angles. n performs the coordinate transformation
of a vector in body-axes into a vector in wind-axes. Angles of attack
and sideslip angles are output in radians.
Examples
Determine the angle of attack and sideslip angle from direction
cosine matrix:
dcm = [ 0.8926 0.1736 0.4162; ...
-0.1574 0.9848 -0.0734; ...
-0.4226 0 0.9063];
[alpha beta] = dcm2alphabeta(dcm)
alpha =
0.4363
beta =
0.1745Determine the angle of attack and sideslip angle from multiple
direction cosine matrices:
dcm = [ 0.8926 0.1736 0.4162; ...
-0.1574 0.9848 -0.0734; ...
-0.4226 0 0.9063];
dcm(:,:,2) = [ 0.9811 0.0872 0.1730; ...
-0.0859 0.9962 -0.0151; ...
-0.1736 0 0.9848];
[alpha beta] = dcm2alphabeta(dcm)
alpha =
0.4363
0.1745
beta =
0.1745
0.0873See Also
angle2dcm, dcm2angle, dcmbody2wind
 | datcomimport | | dcm2angle |  |
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