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Firstly, the micro-motion characteristic test device is designed to carry out the micro-motion experiment, and the micro-motion characteristic of the test device is numerically simulated to verify the accuracy of the model compared with test data. On this basis, the angular velocity interferences of different values and different directions are simulated, and it is verified that the transversal initial interference is much larger than the spinning angular velocity interference. The cloud images of transversal angular velocity and precession angle under different transversal initial interferences are calculated. 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