Relative attitude determination for fly-around based on UKF

Author

Jin, Yongqiang ; Liu, Xiangdong ; HOU, Chaozhen

Author_Institution

Dept. of Autom. Control, Beijing Inst. of Technol., Beijing

fYear

2008

fDate

25-27 June 2008

Firstpage

6397

Lastpage

6401

Abstract

To solve the problem of relative attitude determination of a deputy satellite with respect to chief satellite in fly-around, unscented Kalman filter (UKF) method of relative attitude determination is presented. The minimum representation of the attitude, modified Rodrigues parameter (MRP) is adopted as the attitude representation parameter. Combination of gyro, star tracker and laser rendezvous radar are employed as the attitude sensors. The state equation of relative attitude determination is obtained with consideration of relative attitude dynamic equation. Therefore, the UKF model is constructed. Simulations are done and the comparison with that of extended Kalman filter (EKF) shows that the UKF method has a faster convergence speed and a higher estimation precision.

Keywords

Kalman filters; artificial satellites; attitude control; attitude measurement; deputy satellite; extended Kalman filter; laser rendezvous radar; modified Rodrigues parameter; relative attitude determination; star tracker; unscented Kalman filter method; Equations; Filtering; Kalman filters; Laser modes; Laser radar; Materials requirements planning; Position measurement; Radar tracking; Satellites; Spaceborne radar; fly-around; laser rendezvous radar; relative attitude determination; unscented Kalman filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on

Conference_Location

Chongqing

Print_ISBN

978-1-4244-2113-8

Electronic_ISBN

978-1-4244-2114-5

Type

conf

DOI

10.1109/WCICA.2008.4593896

Filename

4593896