An Autonomous Predicted Star Locations Algorithm for Star Sensor-Reference-Cited by-同舟云学术

An Autonomous Predicted Star Locations Algorithm for Star Sensor

Published:2014-01 Issue: Volume:490-491 Page:1671-1675
ISSN:1662-7482
Container-title:Applied Mechanics and Materials
language:
Short-container-title:AMM

Author:

Zheng Xun Jiang¹,Zhang Guang Jun¹,Li Bao Hua²

Affiliation:

1. Beihang University

2. Harbin Institute of Technology

Abstract

The larger area threshold scan window in star image is scanned with conventional star tracking algorithm under large maneuvering of the vehicle. This results that the number of calculating angular separation between two stars is increased. So the update rate of star sensor is decreased and the feasibility of errors star locations is increased. So, an autonomous predicted star locations algorithm with high angle velocity is presented in this paper. Firstly, the actual star locations are obtained within the threshold scan window of corresponding ideal star locations calculated by last frame in the current star image. Secondly the current attitude information is calculated with the obtaining actual star locations. Thirdly, the next ideal attitude is calculated with current attitude and last attitude. Finally, the next ideal star locations are calculated with the next ideal attitude. At last the algorithm are tested not only simulation but also at night sky experiment with the angular speed maneuvering of aircraft is 5.208681°/s in 2013. And the algorithm has be applied star sensor of satellite GNC.

Publisher

Trans Tech Publications, Ltd.

Link

https://www.scientific.net/AMM.490-491.1671.pdf

Reference10 articles.

1. Liebe C.C. Accuracy performance of star trckers- a tutorial[J]. IEEE Transactions on Aerospace and Electronic Systems. 2002, 38(2): 587-599.

2. P.M. Salomon. Charge Coupled Device (CCD) Trackers for High-accuracy Guidance Applications. Optical Engineering. 20(1): pp.135-142, (1981).

3. T.E. Strikwerda, H.L. Fisher, C.C. Kilgus. Autonomous Star Identification and Spacecraft Attitude Determination with CCD Star Trackers, Proc. First ESA Internal Conf. on Spacecraft Guidance, Navigation and Control Systems. Noordwijk, Netherlands., pp.195-200, (1991).

4. T.E. Strikwerda, H.L. Fisher, C.C. Kilgus. Autonomous Star Identification and Spacecraft Attitude Determination with CCD Star Trackers, Proc. First ESA Internal Conf. on Spacecraft Guidance, Navigation and Control Systems. Noordwijk, Netherlands., pp.195-200, (1991).

5. Mortari D., Search-Less Algorithm for Star pattern recognition, The Journal of the Astronautical Sciences, 45(2), pp.179-194, (1997).