Data Compression and Cloud Screening using a High-Performance Embedded System-on-a-Chip for the Earth Surface Mineral Dust Source Investigation (EMIT) imaging spectrometer on the International Space Station (ISS) release_rev_d3de2c16-57c4-49b5-8eee-4b1bb242f33b

by D. Keymeulen, T. Pham, M. Klimesh, G. Allen, G. Flesch, R. Valencia, H. Xie, A. Kiely, D. Dolman, K. Roth, K. Crocker, T. Whitlock (+8 others)

Published by Zenodo.



System-on-a-chip (SoC) devices promise lighter, smaller, cheaper, more capable and more reliable space electronic systems. This paper describes the focal plane interface electronics – digital (FPIE-D) Xilinx Zynq-based data acquisition, cloud-screening, compression, storage and downlink computing system developed by the Jet Propulsion Laboratory (JPL), Alpha Data, Correct Designs and Mercury Systems for the NASA Earth Surface Mineral Dust Source Investigation (EMIT) instrument. EMIT is an imaging spectrometer that acquires 1280 cross-track by 328 band images at 216 images/sec. Following launch (14 July 2022), EMIT has been installed outside the International Space Station (ISS) and is collecting data from science targets in arid dust source regions of the Earth. EMIT will be used to study the mineral dust cycle which has multiple impacts on the Earth System. The science objective of EMIT is to close the gap in our understanding of mineral dust heating and cooling impact on the Earth now and in the future by determining the surface mineralogy of mineral dust sources. The EMIT FPIE-D board design is based on a standard Alpha Data COTS Zynq7100 board in an XMC form factor. The FPIE-D Alpha Data hardware and components, including a Mercury Systems 440 GByte RH3440 Solid-State Data Recorder (SSDR), fit into a 280mm×170mm×40mm assembly. The FPIE-D peak power usage is 40 W. The computing element is a Xilinx Zynq Z7100 which includes a Kintex-7 FPGA and dual-core ARM Cortex-A9 Processor [7][8][9]. The COTS board was re-spun to make it suitable for space (replacing components with space grade equivalents) and to add features needed for the mission. The FPIE-D board is designed to be very flexible, and not specific to EMIT mission. The FPIE-D assembly with its Zynq SoC controls the other assemblies on the EMIT instrument. The FPIE-D Zynq Processing System is responsible for running the flight software, which includes command & data handling, command & telemetry with ISS over 1553 and science data downlink over a 7. [...]
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Type  article-journal
Stage   published
Date   2022-09-27
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