Transfer alignment method capable of estimating and compensating wing deflection deformation
A technology of deflection deformation and transfer alignment, applied in the field of inertial navigation, can solve the problems of large installation error angle estimation error, failure of wing deflection deformation angle, and no longer applicable, so as to achieve fast alignment speed and reduce calculation The effect of volume and form is simple
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[0082] Example 1
[0083] In order to further explain the above method and fully demonstrate the reliability and accuracy of the method, a digital simulation experiment was carried out.
[0084] (1) Simulation initial conditions and parameter settings
[0085] 11) The initial speed of the carrier is 100m / s in the east, 100m / s in the north, and 0m / s in the sky; the initial position of the carrier: latitude is 30°, longitude is 110°, height is 1000m; the initial attitude of the carrier is: pitch The angle is 0°, the roll angle is 0°, and the yaw angle is -45°.
[0086] 12) The sub-inertial navigation accelerometer constant offset is set to 5mg; the sub-inertial navigation gyro constant value drift is set to 10 (deg / h); the sub-inertial navigation installation angle relative to the main inertial navigation is set to 2 °, 1.5°, 1°.
[0087] 13) Wing deflection and deformation related time τ x = 60s, τ y = 80s, τ z = 70s, the variance of the second-order Markov process σ i 2 = ...
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