Orthogonalization correction method for strapdown attitude matrix in analytic expression coarse alignment
A technique of attitude matrix and rough alignment, applied in directions such as navigation through velocity/acceleration measurement, and can solve problems such as the influence of navigation accuracy
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[0062] The present invention is described in more detail below in conjunction with accompanying drawing example: Orthogonal correction method of strapdown attitude matrix in analytic formula coarse alignment
[0063] Step 1: From the local latitude of the carrier get the acceleration of gravity and the Earth's angular velocity Projection on the navigation coordinate system n:
[0064] g ‾ n = 0 0 - 9.78049 T
[0065]
[0066] Step 2: Determine the third vector from the result of step 1 Projection on the navigation coordinate system n:
[0067] E ‾ n = g ‾ ...
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