• Home
  • Current congress
  • Public Website
  • My papers
  • root
  • browse
  • IAC-12
  • B4
  • 6A
  • paper

    • The design and implementation of leon based command and data handling subsystem for naro satellite of korea

    Paper number

    IAC-12,B4,6A,12,x15572

    Author

    Mr. Daesoo Oh, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of

    Coauthor

    Mr. SungOk Park, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of

    Coauthor

    Mr. Kyungin Kang, Korea Advanced Institute of Science and Technology (KAIST), Korea, Republic of

    Year

    2012

    Abstract
    The first space launcher in Korea, Naro will take off with Korean science and technology satellite STSAT-2C(NARO Satellite) in 2012.  
This paper describes the design and implementation of Command and Data handling Subsystem(CDS) for NARO Satellite.
CDS of NARO Satellite is composed of On-Board Computer(OBC), Data Storage Module(DSM), I/O Module(IOM) and Low Voltage Power Supply(LVPS).
OBC manages the spacecraft and payload according to the schedule set by Ground Station(G/S) and provides environment for ACS(Attitude Control Subsystem) Flight Software, DSM stores payloads data and sends them to the G/S via X-band RF channel and IOM apply bi-level commands and samples the analog and digital sensors.
CDS of NARO Satellite is on-orbit reconfigurable subsystem which is based on Leon3 Fault Tolerant Processor by
uploading FPGA code and Flight Software Code. By which we can modify, upgrade and even change the system
during mission. For reliable system Triple Module Redundancy(TMR) technology and configuration memory
scrubbing algorithm is applied to protect FPGA and Error Detection and Correction algorithm(EDAC) is also applied
to protect memories in space application.
Many functions are implemented in FPGA such as Reed-Solomon code, lossless compression code and Protocol
Processing code of NARO Satellite for high speed data processing. Electrical Function test and space environment test was successfully performed and it satisfies the requirements of NARO Satellite.
    Abstract document

    IAC-12,B4,6A,12,x15572.brief.pdf

    Manuscript document

    IAC-12,B4,6A,12,x15572.pdf (🔒 authorized access only).

    To get the manuscript, please contact IAF Secretariat.