Share Email Print
cover

Proceedings Paper

The command and data processing unit of the EUCLID visible imager: impact of the data compression needs on the unit design
Author(s): Anna Maria Di Giorgio; Paolo Bastia; Scige J. Liu; Giovanni Giusi; Roberto Scaramella; Mark Cropper; Richard Cole; Ady James; Jérôme Amiaux; Yannick Mellier
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The Command and Data Processing Unit (CDPU) of the Euclid Visible Imager is one of the two warm electronics units of the instrument. It implements on one side the digital interface to the satellite, for telecommands acquisition and telemetry downloading, and on the other side the interface to the focal plane CCDs readout electronics, for science data acquisition and compression. The CDPU main functionalities include the instrument commanding, control and health monitoring. The baseline unit architecture is presented, reporting the results of the phase B1 study and of the trade-off activity carried out to check the performances of the SW implementation of two different lossless compression algorithms on the baseline target processor (LEON3-FT) and on a HW compressor.

Paper Details

Date Published: 21 September 2012
PDF: 9 pages
Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 844233 (21 September 2012); doi: 10.1117/12.926638
Show Author Affiliations
Anna Maria Di Giorgio, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Paolo Bastia, Thales Alenia Space (Italy)
Scige J. Liu, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Giovanni Giusi, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Roberto Scaramella, INAF - Osservatorio Astronomico di Roma (Italy)
Mark Cropper, Mullard Space Science Lab., Univ. College London (United Kingdom)
Richard Cole, Mullard Space Science Lab., Univ. College London (United Kingdom)
Ady James, Mullard Space Science Lab., Univ. College London (United Kingdom)
Jérôme Amiaux, Commissariat à l'Énergie Atomique (France)
Yannick Mellier, Institut d'Astrophysique de Paris (France)


Published in SPIE Proceedings Vol. 8442:
Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave
Mark C. Clampin; Giovanni G. Fazio; Howard A. MacEwen; Jacobus M. Oschmann, Editor(s)

© SPIE. Terms of Use
Back to Top