A practical view to database generation of star identification algorithm for space applications

Author

Mohammadnejad, Shahram ; Rostami, Amirhossein ; Sarvi, Mehdi Nasiri

Author_Institution

Nanoptronics Res. Center, Iran Univ. of Sci. & Technol., Tehran, Iran

fYear

2012

fDate

18-20 July 2012

Firstpage

1

Lastpage

4

Abstract

Nowadays, star trackers are widely used in satellites and spacecraft for three-axis attitude estimation. Star trackers are the most accurate instrument among the others. A Star tracker is made up of hardware and software (firmware). The software (firmware) is a set of algorithm that runs in a microprocessor. These algorithms include centroiding, star identification and attitude determination. Star identification algorithm needs a database to identify stars in the image. In this paper, we describe a novel method of constructing database by considering practical issues. We discuss about main catalog, base catalog, database and ordering it to improve the speed of star identification algorithm. This database was used in our star identification algorithm.

Keywords

artificial satellites; attitude measurement; firmware; microprocessor chips; star trackers; attitude determination; base catalog; centroiding; database generation; firmware; microprocessor; satellites; space applications; spacecraft; star identification; star trackers; three-axis attitude estimation; Catalogs; Databases; Position measurement; Satellites; Sensors; Signal processing algorithms; Space vehicles; star catalog; star database; star tracker;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, Networks & Digital Signal Processing (CSNDSP), 2012 8th International Symposium on

Conference_Location

Poznan

Print_ISBN

978-1-4577-1472-6

Type

conf

DOI

10.1109/CSNDSP.2012.6292730

Filename

6292730