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Titolo:
LASER VISION SYSTEM TO MEASURE AND TRACK THE ATTITUDE OF A TETHER-STABILIZED SATELLITE SYSTEM IN A LABORATORY SIMULATOR
Autore:
ANGRILLI F; BIANCHINI G; FANTI G;
Indirizzi:
UNIV PADUA,DIPARTIMENTO INGN MECCAN,VIA VENEZIA 1 PADUA ITALY UNIV PARMA,DIPARTIMENTO INGN IND PARMA ITALY
Titolo Testata:
Optical engineering
fascicolo: 3, volume: 35, anno: 1996,
pagine: 890 - 894
SICI:
0091-3286(1996)35:3<890:LVSTMA>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Keywords:
SPACE TELESCOPE; LASER VISION SYSTEM; MULTIPLE-REFLECTION OPTICAL LEVER; ATTITUDE CONTROL; LABORATORY SIMULATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
F. Angrilli et al., "LASER VISION SYSTEM TO MEASURE AND TRACK THE ATTITUDE OF A TETHER-STABILIZED SATELLITE SYSTEM IN A LABORATORY SIMULATOR", Optical engineering, 35(3), 1996, pp. 890-894

Abstract

A bidimensional laboratory simulator to measure and control the attitude of a tether-stabilized platform for orbiting telescopes is presented and discussed. Yaw and libration angles are measured by plane tracking of the image of a laser spot, reflected on a screen by a mirror fixed to a floating platform. A multiple-reflection optical lever enables amplification of platform motion. The libration and yaw angles are related to the coordinates of the spot projected on the screen. Disturbances due to overall tether dynamics and telescope slewing are both reproduced and accounted for. Attitude control is achieved by moving theattachment point of the tether on the platform. Displacements are computed and commands are sent to a dc servo-motor via a PC. This measurement system allows platform libration theta and yaw phi angles to be measured to an accuracy of 0.06 x 10(-3) rad; an accuracy of 0.4x10(-3)rad in 10 s is reached in attitude control. (C) 1996 Society of Photo-Optical Instrumentation Engineers.

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Documento generato il 05/12/20 alle ore 00:29:24