Convert angle of attack and sideslip angle to direction cosine matrix
n = dcmbody2wind(a, b)
n = dcmbody2wind(a, b)
calculates
the direction cosine matrix, n
, for given angle
of attack and sideslip angle, a
, b
. a
is
an m
array of angles of attack. b
is
an m
array of sideslip angles. n
returns
a 3-by-3-by-m
matrix containing m
direction
cosine matrices. n
performs the coordinate transformation
of a vector in body-axes into a vector in wind-axes. Angles of attack
and sideslip angles are input in radians.
Determine the direction cosine matrix from angle of attack and sideslip angle:
alpha = 0.4363; beta = 0.1745; dcm = dcmbody2wind(alpha, beta) dcm = 0.8926 0.1736 0.4162 -0.1574 0.9848 -0.0734 -0.4226 0 0.9063
Determine the direction cosine matrix from multiple angles of attack and sideslip angles:
alpha = [0.4363 0.1745]; beta = [0.1745 0.0873]; dcm = dcmbody2wind(alpha, beta) dcm(:,:,1) = 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