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Development of FPGA-based Meteorological Information Data Receiver Circuit for Low-Cost Meteorological Information Receiver System for COMS

보급형 천리안 위성 기상정보 수신시스템을 위한 FPGA 기반 기상정보 데이터 수신회로 개발

Ryu, Sang-Moon
류상문

  • Received : 2015.07.10
  • Accepted : 2015.08.11
  • Published : 2015.10.31

Abstract

COMS(Communication, Ocean and Meteorological Satellite), the first Korean geostationary meteorological satellite, provides free meteorological information through HRIT/LRIT(High/Low Rate Information Transmission) service. This work presents the development of data receiver circuit that is essential to the implementation of a low-cost meteorological information receiver system. The data receiver circuit processes the data units according to the specification of physical layer and data link layer of HRIT/LRIT service. For this purpose, the circuit consists of a Viterbi decoder, a sync. word detector, a derandomizer, a Reed-Solomon decoder and so on. The circuit also supports PCI express interface to pass the information data on to the host PC. The circuit was implemented on an FPGA(field programmable gate array) and its function was verified through simulations and hardware implementation.

Keywords

COMS;meteorological information receiver system;HRIT;LRIT;FPGA

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