Systems Engineering and Electronics ›› 2023, Vol. 45 ›› Issue (11): 3640-3648.doi: 10.12305/j.issn.1001-506X.2023.11.32

• Guidance, Navigation and Control • Previous Articles     Next Articles

Davenport quaternion DVL calibration method based on position observation information

Hongqiong TANG1, Jiangning XU1, Wence SHI1,2, Hongyang HE1, Fangneng LI1,*   

  1. 1. College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
    2. Unit 91321 of the PLA, Jinhua 322000, China
  • Received:2022-09-30 Online:2023-10-25 Published:2023-10-31
  • Contact: Fangneng LI

Abstract:

Doppler velocity log (DVL) can provide external velocity assistance information for strapdown inertial navigation system (SINS) in real time, the accurate and stable DVL calibration work can improve the performance of SINS/DVL integrated navigation system. In order to solve this problem effectively, this paper proposed a Davenport quaternion calibration method based on position observation information. In the proposed method, the scale factor error is calibrated by the position observation information based on the Doppler velocimetry principle to reduce the adverse effect of the velocity measurement noise, and the installation angle error is calibrated by solving the position observation vector equation based on the Davenport quaternion method to enhance the stability of the rotation matrix solution. The boat-borne lake test results demonstrate that the proposed method has higher accuracy and better stability than the current methods in both simple and complex maneuvering situations.

Key words: Doppler velocity log (DVL), strapdown inertial navigation system (SINS), error calibration, integrated navigation

CLC Number: 

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