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Proceedings Paper • Open Access

Optical compressive sensing technologies for space applications: instrumental concepts and performance analysis
Author(s): Donatella Guzzi; Giulio Coluccia; Demetrio Labate; Cinzia Lastri; Enrico Magli; Vanni Nardino; Lorenzo Palombi; Ivan Pippi; Daniela Coltuc; Alessandro Zuccaro Marchi; Valentina Raimondi

Paper Abstract

This paper presents the results of a study aimed at investigating the potential of Compressive Sensing (CS) technologies for optical space instruments. Besides assessing the pros and cons for a wide set of proposed instrumental concepts for space applications, the study analyzed in further detail two CS-based instrument concepts, each targeting a specific application: an UV-VIS hyperspectral imager on orbiter for stellar spectro-photometry and a MIR camera for sky observation and real-time detection of Near Earth Objects (NEO). The proposed UV-VIS hyperspectral imager relies on a classical CS approach and addresses the CS reconstruction of the full image in order to implement slitless spectrophotometry of stars. The CS-based MIR camera for NEO detection instead explores a novel approach aiming at information extraction without a prior full reconstruction of the image. Besides outlining the optical design of the instruments, its key elements and a pros and cons analysis of the architecture, this paper presents the performance assessment of these instruments for typical application scenarios by means of simulated data. The results showed that, from the point of view of data reconstruction quality, a good performance can be achieved by the designed instruments in terms of compression ratio (CR) and image reconstruction. In terms of system budgets, the CS architecture offered only some marginal benefits with respect to their traditional counterparts, mainly due to the lack of a compression board. Most advantages are instead provided in terms of downlink requirements and memory buffer.

Paper Details

Date Published: 12 July 2019
PDF: 10 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111806B (12 July 2019); doi: 10.1117/12.2536146
Show Author Affiliations
Donatella Guzzi, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Giulio Coluccia, Politecnico di Torino (Italy)
Demetrio Labate, Leonardo (Italy)
Cinzia Lastri, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Enrico Magli, Politecnico di Torino (Italy)
Vanni Nardino, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Lorenzo Palombi, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Ivan Pippi, Istituto di Fisica Applicata "Nello Carrara" (Italy)
Daniela Coltuc, Univ. Politehnica of Bucharest (Romania)
Alessandro Zuccaro Marchi, European Space Research and Technology Ctr. (Netherlands)
Valentina Raimondi, Istituto di Fisica Applicata "Nello Carrara" (Italy)

Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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