Abstract
High dynamic inertial measurement unit (IMU) can measure the attitude information of the high dynamic environment. At the most severe working condition of IMU, affecting by the cone effect, the general attitude algorithm is difficult to accurately calculate the carrier’s attitude information, which is named Coning motion. In order to realize the resolving of attitude coning motion vector in high dynamic environment fastly, improving the accuracy of resolving IMU, the design of high dynamic IMU resolving method is particularly important. Combining with the traditional attitude algorithm, on account of the characteristics of the object movement under high dynamic environment, presents a high dynamic IMU attitude resolving method. On the basis of the conventional algorithm, improving coning motion resolving method, all of them consist a combination of dynamic rotation vector method. The simulation results show that compared with the conventional method of rotating vector, the proposed high dynamic IMU can get more accurate result.
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