• Title/Summary/Keyword: 단일사건혼란

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Muliti Digital Data Control System Development for Ultra-Small Satellite using FPGA (FPGA를 이용한 초소형위성용 다중디지털 데이터 처리 시스템 개발)

  • Ryu, Jung-Hwan;Shim, Chang-Hwan;Choi, Young-Hoon;Lee, Byung-Hoon;Chang, Young-Keun
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.35 no.6
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    • pp.556-563
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    • 2007
  • The current trend of low cost ultra-small satellites is to utilize Commercial Off the Shelf (COTS) parts to save cost, and accordingly, Command and Data Handling (C&DH) that operates the satellite and collects/processes the data is also designed and developed around commercial controllers. However, functionalities of commercial controllers are limited according to the specs outlined by the manufacturer. In order for the commercial controllers to be used for satellites where variety of interfaces is required, a separate interface circuit is required. Therefore, a Multi Digital Data Control System (MDDCS) using Field Programmable Gate Array (FPGA) has been developed in order to expand multiple digital interfaces that are not supported by the commercial controller, and also to compensate for SEU. This has been implemented on Actel A3P1000 using Very High Speed Integrated Circuits Hardware Description Language (VHDL).