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2005•Journal of Projectiles.Rockets.Missiles and GuidanceRequires access

Study of Strapdown Navigation Attitude Algorithms for Angular Rate Input

Jianjun Zhu

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Abstract

The attitude updating algorithm is a determinant factor in strapdown inertial navigation system(SINS).According to the practical projects,this paper studies two-sample,three-sample rotation vector and quaternion under the coning base motion,and an improved two-sample rotation vector algorithm is provided.The simulation results show that the accuracy of the improved two-sample rotation vector algorithm is better than that of other algorithms.

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What this paper is about

The attitude updating algorithm is a determinant factor in strapdown inertial navigation system(SINS).According to the practical projects,this paper studies two-sample,three-sample rotation vector and quaternion under the coning base motion,and an improved two-sample rotation vector algorithm is provided.The simulation results show that the accuracy of the improved two-sample rotation vector algorithm is better than that of other algorithms.

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Available abstract

The attitude updating algorithm is a determinant factor in strapdown inertial navigation system(SINS).According to the practical projects,this paper studies two-sample,three-sample rotation vector and quaternion under the coning base motion,and an improved two-sample rotation vector algorithm is provided.The simulation results show that the accuracy of the improved two-sample rotation vector algorithm is better than that of other algorithms.

Key concepts: Quaternion, Inertial navigation system, Rotation matrix, Rotation (mathematics), Sample (material), Algorithm, Base (topology), Computer science

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