MIMU Parameter Identification for Large Misalignment Angles Based on AFSA

Kun Peng He; Chen Yang Wang; Yuan Li

doi:10.4028/www.scientific.net/AMM.678.23

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 678MIMU Parameter Identification for Large...

MIMU Parameter Identification for Large Misalignment Angles Based on AFSA

Abstract:

High precision calibration of Micro inertial measurement unit (MIMU) for large installation misalignment can improve the instrument and the practical use of the system precision. It can use high precision turntable to get the coarse value of installation misalignment angle as the optimization initial value, and take the standard deviation of turntable angular rate and the acceleration of gravity as the optimum index to find MIMU misalignment parameters using artificial fish swarm algorithm. Simulation and analysis are carried out based on the position and rate experiment. In addition, static navigation test is taken by using self-developed MEMS heading and attitude measurement system. Both the simulation and experimental results show that this method can improve the calibration accuracy of MIMU effectively with reduced of heading and attitude error.

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Periodical:

Applied Mechanics and Materials (Volume 678)

Pages:

23-27

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.678.23

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Online since:

October 2014

Authors:

Kun Peng He, Chen Yang Wang*, Yuan Li

Keywords:

Artificial Fish Swarm Algorithm, Large Installation Misalignment, Micro Inertial Measurement Unit, Parameter Identification

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* - Corresponding Author

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