Title :
Accuracy performance of star trackers - a tutorial
Author :
Liebe, Carl Christian
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
4/1/2002 12:00:00 AM
Abstract :
An autonomous star tracker is an avionics instrument used to provide the absolute 3-axis attitude of a spacecraft utilizing star observations. It consists of an electronic camera and associated processing electronics. The processor has the capability to perform star identification utilizing an internal star catalog stored in firmware and to calculate the attitude quaternion autonomously. Relevant parameters and characteristics of an autonomous star tracker are discussed in detail
Keywords :
CCD image sensors; attitude control; attitude measurement; avionics; calibration; firmware; focal planes; space vehicle electronics; S-curve errors; absolute 3-axis attitude; accuracy performance; algorithmic errors; attitude quaternion; autonomous star tracker; avionics instrument; calibration errors; electronic camera; firmware; focal plane; internal star catalog; noise equivalent angle; pattern recognition; pinhole star tracker; processing electronics; radiometric calculations; sensitivity to starlight; spacecraft; star centroiding; star detection threshold; star identification; subpixel centroiding; tutorial; Aerospace electronics; Instruments; Laboratories; Microcomputers; Microprogramming; Position measurement; Propulsion; Space technology; Space vehicles; Tutorial;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2002.1008988
