The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 2022
Filed:
Mar. 12, 2019
Southeast University, Nanjing, CN;
SOUTHEAST UNIVERSITY, Nanjing, CN;
Abstract
A method for decoupling an angular velocity in a transfer alignment process under a dynamic deformation includes: (1) generating, by a trajectory generator, information about an attitude, a velocity, and a position of a main inertial navigation system and an output of an inertial device, and simulating a bending deformation angle {right arrow over (θ)} between the main inertial navigation system and a slave inertial navigation system and a bending deformation angular velocity {right arrow over (ω)}by using second-order Markov; (2) decomposing the dynamic deformation into a vibration deformation and a bending deformation, and establishing an angular velocity model under the dynamic deformation of a wing; (3) deducing an error angle Δ{right arrow over (ϕ)} between the main inertial navigation system and the slave inertial navigation system; and (4) deducing an expression Δ{right arrow over (ω)} of a coupling error angular velocity, and applying that to an angular velocity matching process of transfer alignment to improve the precision of the transfer alignment.
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