Rapid damping method of strap-down inertial navigation system
A strapdown inertial navigation and strapdown inertial navigation technology, which is applied in the field of rapid suppression of navigation errors of strapdown inertial navigation systems, can solve problems such as long damping process time and inertial navigation system inoperability, and shorten damping time and convergence time , the effect of strong exercise adaptability
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[0023] The following examples describe the present invention in more detail:
[0024] Step 1: SINS warm-up preparation, the warm-up time is about 2 hours;
[0025] Step 2: Initial alignment of the SINS;
[0026] Step 3: Update the forward attitude matrix;
[0027] When calculating the forward attitude matrix update, the algorithm model adopted is:
[0028] C bk n = C bk - 1 n ( I + ΔT · Ω nbk b ) - - - ( 1 )
[0029] In the formula:
[0030] Ω nbk b = ( ω nbk b ...
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