Study on dynamic angle-measurement compensation for star sensor

Author

Shufang Zhao ; Yu Wang ; Hongtao Wang ; Caiyan Ji

Author_Institution

Sch. of Autom., Beijing Inst. of Technol., Beijing, China

Volume

1

fYear

2011

fDate

26-28 July 2011

Firstpage

255

Lastpage

258

Abstract

A dynamic angle-measurement compensation method is proposed to solve the star sensor image shift question caused by the attitude change during measuring. The mathematical model of star point pixel gray distribution is established when the star point makes uniform accelerated rectilinear motion relative to the photosensitive surface of image sensor. Then the principle and method of angle-measurement compensation is put forward. This method can also fit the situation of the star point making uniform rectilinear motion relative to the photosensitive surface of image sensor. Later, simulations are carried out. The results show that the dynamic angle-measurement error of the star sensor after compensation is perfect enough.

Keywords

aerospace instrumentation; angular measurement; navigation; star trackers; accelerated rectilinear motion; attitude change; dynamic angle measurement compensation; image sensor; photosensitive surface; star point pixel gray distribution; star sensor image shift; Acceleration; Arrays; Dynamics; Equations; Image sensors; Mathematical model; Navigation; dynamic angle-measurement compensation; mathematical model; simulation; star sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Natural Computation (ICNC), 2011 Seventh International Conference on

Conference_Location

Shanghai

ISSN

2157-9555

Print_ISBN

978-1-4244-9950-2

Type

conf

DOI

10.1109/ICNC.2011.6022103

Filename

6022103