Processing Centroids of Smearing Star Image of Star Sensor
Joint Authors
Liu, Enhai
Zhang, Hui
Zhong, Jianyong
Liao, Yufu
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A novel method was presented for increasing the accuracy of subpixel centroid estimation for smearing star image.
Model of the smearing trajectory of smearing star was built.
It helped to study the analytical form of the errors, caused by image smearing, for centroid estimation.
In the algorithm, the errors were estimated with accuracy and used to revise the centroid processed by CoM (centre of mass).
Simulations have been run to study the effect of angular rates, integration time, and actual position of star on the accuracy of centroid estimation.
Results were presented which suggested that the proposed algorithm had a precision better than 1/10 of a pixel when the angular rate was up to 3.0 deg/s.
American Psychological Association (APA)
Liao, Yufu& Liu, Enhai& Zhong, Jianyong& Zhang, Hui. 2014. Processing Centroids of Smearing Star Image of Star Sensor. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-479385
Modern Language Association (MLA)
Liao, Yufu…[et al.]. Processing Centroids of Smearing Star Image of Star Sensor. Mathematical Problems in Engineering No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-479385
American Medical Association (AMA)
Liao, Yufu& Liu, Enhai& Zhong, Jianyong& Zhang, Hui. Processing Centroids of Smearing Star Image of Star Sensor. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-479385
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-479385