Recent advances in electronics and software for the METIS coronagraph aboard Solar Orbiter

被引：0
|
作者：
Focardi, M. [1 ]
Pancrazzi, M. [1 ]
Nicolini, G.
Magli, E.
Ricci, M.
Uslenghi, M.
Romoli, M.
Landini, F. [1 ]
Antonucci, E.
Fineschi, S.
Naletto, G.
Nicolosi, P.
Spadaro, D.
Andretta, V.
Errico, W.
Bigongiari, F.
Fontani, L.
Orlandi, M.
Colonna, A.
机构：
[1] INAF, Arcetri Astrophys Observ, I-50125 Florence, Italy
来源：
SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION V | 2013年 / 8862卷
关键词：
Solar Corona; Coronagraph; Data Processing Electronics; On Board Data Handling; rad-hard CPU; signal processing; Scientific Algorithms; Payload Data Base;
D O I：
10.1117/12.2023256
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
METIS is a visible and UV externally inversely occulted coronagraph selected to fly aboard the Solar Orbiter space mission. Thanks to its own capabilities and exploiting the peculiar opportunities offered by the SO mission profile, the instrument will address some of the still open issues in understanding the physics driving the observed processes in the corona and characterizing the slow and fast components of the solar wind. Recently the METIS design went thorough a significant revision involving the overall electronics configuration and software functionalities, comprehensive of descoping of some features but also aiming at the improvement of the instrument's reliability. As a result the electronics architecture has been simplified enabling an effective cold-strapped redundancy scheme of some subsystems, while the preliminary SW database has been defined as well. We also identified the scientific processing algorithms implementing the instrument functionalities and the image-compression capabilities able to match the selected HW resources providing an optimal compromise between complexity and compression ratio. This paper describes the revised electronics and software design developed in order to maximize the overall scientific returns with the updated instrument configuration approaching the Phases C/D of the project.
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页数：13
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