Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (10): 3265-3273.doi: 10.12305/j.issn.1001-506X.2023.10.31

• Guidance, Navigation and Control • Previous Articles    

Analysis and comparison of Euler angles based-error model based on Lie groups of the strapdown inertial navigation system

Tiangao ZHU1, Yong LIU2, Kailong LI1,*, Renjie ZHAO3   

  1. 1. College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
    2. College of Ship and Ocean, Naval University of Engineering, Wuhan 430033, China
    3. Representative Bureau of Naval Armament Department in Beijing, Beijing 100071, China
  • Received:2022-01-14 Online:2023-09-25 Published:2023-10-11
  • Contact: Kailong LI

Abstract:

The attitude and velocity of inertial navigation are included in a group at the same time. Accor-ding to two kinds of definition of error, the left error model and right error model of Lie group are formed. In view of two Lie group error models based on Euler angles, a comparison and analysis of two error models are carried out, and the difference of two error models based on Lie group is given. In view of two typical integrated navigation system of strapdown inertial navigation system (SINS)/global position system (GPS) and SINS/Doppler velocity log (DVL), a suitable error model selection scheme is proposed. The vehicle test and boat test results show that the two error models based on Lie Group are more suitable to SINS/GPS and SINS/DVL respectively, especially with large initial misalignment angles. The selected error model has a better position accuracy, convergence speed and stability.

Key words: strapdown inertial navigation system (SINS), integrated navigation, error model, Lie group, Euler angle

CLC Number: 

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