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dc.contributor.authorMunteanu, C.
dc.contributor.authorTuricu, D.C.
dc.contributor.authorCreţ, O.
dc.contributor.authorEchim, M.
dc.date2022
dc.date.accessioned2022-10-18T12:24:28Z
dc.date.available2022-10-18T12:24:28Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/10554
dc.descriptionThe analysis in real time of space data variability is essential for scientists and space mission controllers. Automated tools designed to extract key descriptors of variability are needed and solutions to adapt such algorithms for on-board computers are rare. This paper describes the design of an automated system for detecting directional discontinuities of a physical quantity and its implementation in Field-Programmable Gate Array (FPGA). The system is currently adapted for solar wind or terrestrial magnetosheath magnetic field directional discontinuities, that is, sharp changes of the magnetic field directionality. Our detection algorithm uses analysis windows of adjustable width and averaging procedures in order to reduce the effects of random fluctuations. A sliding-window approach is designed for continuous monitoring and detection of magnetic directional discontinuities. A software implementation of the algorithm was tested using in-situ magnetic field measurements, and emphasized improvements of performance when using analysis windows of adjustable width. The FPGA implementation of the detection algorithm is built on DILIGENT Nexys 4 DDR featuring a commercial Xilinx Artix-7 device and is designed to be ported to space qualified infrastructure. The FPGA system was tested with synthetic and laboratory signals, and provides results in very good agreement with the software implementation. The FPGA system provides an efficient real-time monitoring solution using minimal computational and energy resources, and reducing the main on-board computer utilization.
dc.languageeng
dc.titleDetecting Discontinuities From In Situ Space Measurements: Method and FPGA Implementation
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freemagnetic field directional discontinuities
dc.subject.freeon-board monitoring and processing of data
dc.subject.freeFPGA-based design
dc.subject.freehigh-level synthesis (HLS)
dc.source.titleEarth and Space Science
dc.source.volume9
dc.source.issue10
dc.source.pagee2022EA002537
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2022EA002537
dc.identifier.scopus


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