Derivation and Analysis of Attitude Error Models of Strapdown Inertial Navigation System
The conventional linearized error models,such as psiangle model and the equivalent tilt (ET) model,are effective only for systems with infinitesimal attitude errors. To represent the large attitude error of a strapdown inertial navigation system (SINS),the rotation vector error (RVE) is introduced and the relationship between the RVE and the quaternion error is derived. Using this relationship,the nonlinearized attitude error models with additive quaternion,multiplicative quaternion and rotation vector are presented respectively. And they are found to be equivalent to each other. Besides,the nonlinearized error models can be reduced to linearized error models in case of system with very small attitude errors.
Quaternion Rotation vector Error model SINS
Mao Yuliang Chen Jiabin Liu Zhaohua Song Chunlei
School of Automation,Beijing Institute of Technology,Beijing,China
国际会议
西安
英文
1244-1247
2011-12-23(万方平台首次上网日期,不代表论文的发表时间)