An initial alignment algorithm of strapdown inertial navigation system assisted by Doppler radar based on adaptive filtering

Feng Liu; Bo Yang

doi:10.1117/12.2684731

19 October 2023 An initial alignment algorithm of strapdown inertial navigation system assisted by Doppler radar based on adaptive filtering

Feng Liu, Bo Yang

Author Affiliations +

Proceedings Volume 12709, Fourth International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2023); 127093L (2023) https://doi.org/10.1117/12.2684731
Event: Fourth International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2023), 2023, Nanjing, China

Abstract

In order to realize the autonomous initial alignment of the vehicle-borne strapdown inertial navigation system (SINS) on the moving base, an adaptive filter based initial alignment algorithm for Doppler radar-assisted SINS is proposed. The error analysis and modeling about Doppler radar and SINS are carried out, and the alignment state variables are selected according to the established error model. The measurement equation is established by using output of Doppler radar and SINS. The initial alignment algorithm is designed based on adaptive filtering. The simulation results show that the azimuth angle alignment accuracy of the method is better than 3', and the horizontal angle alignment accuracy is better than 1' in 220 s. The initial alignment can be completed quickly and accurately in the case of large Doppler radar velocity variance.

Citation Download Citation

Feng Liu and Bo Yang "An initial alignment algorithm of strapdown inertial navigation system assisted by Doppler radar based on adaptive filtering", Proc. SPIE 12709, Fourth International Conference on Artificial Intelligence and Electromechanical Automation (AIEA 2023), 127093L (19 October 2023); https://doi.org/10.1117/12.2684731

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available