Abstract
An accurately linearized in-motion alignment with a large heading error is proposed for a low-cost inertial navigation system with the aiding of global positioning system. The linearization is designed for both the coarse and the fine stages in the local level frame. A criterion is constructed to determine the time to switch the alignment from the coarse stage to the fine one automatically. A vehicle test demonstrates that the proposed alignment converges fast and accurately.
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More From: IEEE Transactions on Aerospace and Electronic Systems
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