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Accurate and Autonomous Star Acquisition Method for Star Sensor under Complex Conditions
Joint Authors
Zhang, Hao
Niu, Yanxiong
Lu, Jiazhen
Zhang, He
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-31
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Star sensor is a preferred attitude measurement device for its extremely high accuracy.
Star acquisition is the essential and critical procedure, which is aiming at acquiring accurate star areas.
However, degenerated acquisition results under complex conditions become one of the major restrictions for modern star sensor.
In this paper, an accurate and autonomous star acquisition method is proposed.
Mathematical morphology and variable thresholding are combined for accurate star extraction; motion PSF is estimated in frequency domain and nonlinear filter is adopted for star restoration.
Accurate star acquisition can be achieved based on only one star image.
Simulations and laboratory experiments are conducted for verification.
Several existing methods are also reproduced for comparison.
Acquisition results demonstrate that the proposed method is effective and an excellent performance can be achieved autonomously under complex conditions, along with more detected stars and improved acquisition accuracy.
American Psychological Association (APA)
Zhang, Hao& Niu, Yanxiong& Lu, Jiazhen& Zhang, He. 2017. Accurate and Autonomous Star Acquisition Method for Star Sensor under Complex Conditions. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1189607
Modern Language Association (MLA)
Zhang, Hao…[et al.]. Accurate and Autonomous Star Acquisition Method for Star Sensor under Complex Conditions. Mathematical Problems in Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1189607
American Medical Association (AMA)
Zhang, Hao& Niu, Yanxiong& Lu, Jiazhen& Zhang, He. Accurate and Autonomous Star Acquisition Method for Star Sensor under Complex Conditions. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1189607
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1189607