Attitude Estimation Method for Spinning Spacecraft Using Markley Variables and Optical Flow of Stars
Zonghe Ding, Xiaolin Ning, Mingzhen Gui
Available Online July 2016.
- https://doi.org/10.2991/iccia-17.2017.160How to use a DOI?
- Attitude Estimation Method, Markley Variables, Optical Flow of Stars
- Markley variables has the advantages of slow varying, easy calculation and high-precision on the attitude estimation of spinning spacecraft. Most of the previous methods for spinning spacecraft using Markley variables employ the star vector or the angular velocity from gyro as the measurement. Different from the previous methods, this paper proposes an attitude estimation method for spinning spacecraft using Markley variables and optical flow of stars directly from star images of star sensor. This method makes full use of the advantages of Markley variables on the attitude estimation of spinning spacecraft, and it is computationally efficient since the optical flow of stars directly comes from star image. In addition, the star sensor has the higher accuracy of attitude estimation than the traditional sun sensor and magnetometer. Simulations using FY-2 meteorological satellite show that the estimation precision of the spin axis is 0.091° and the estimation precision of spin angular velocity is 1.72×10-4°/s when the star location error is 0.05pixels.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Zonghe Ding AU - Xiaolin Ning AU - Mingzhen Gui PY - 2016/07 DA - 2016/07 TI - Attitude Estimation Method for Spinning Spacecraft Using Markley Variables and Optical Flow of Stars BT - 2nd International Conference on Computer Engineering, Information Science & Application Technology (ICCIA 2017) PB - Atlantis Press SN - 2352-538X UR - https://doi.org/10.2991/iccia-17.2017.160 DO - https://doi.org/10.2991/iccia-17.2017.160 ID - Ding2016/07 ER -