대한원격탐사학회:학술대회논문집 (Proceedings of the KSRS Conference)

대한원격탐사학회 (Korean Society of Remote Sensing)
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OVERALL LINK ANALYSIS ON HRIT AND LRIT IN COMS

  • Park Durk-Jong (Satellite Mission Operation Department, Korea Aerospace Research Institute) ;
  • Hyun Dae-Wan (Satellite Mission Operation Department, Korea Aerospace Research Institute) ;
  • Kang Chi-Ho (Satellite Mission Operation Department, Korea Aerospace Research Institute) ;
  • Ahn Sang-Il (Satellite Mission Operation Department, Korea Aerospace Research Institute) ;
  • Kim Eun-Kyu (Satellite Mission Operation Department, Korea Aerospace Research Institute)
  • 발행 : 2005.10.01
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초록

This paper describes link analysis on the processed data, HRIT (High Rate Information Transmission) and LRIT (Low Rate Information Transmission), for the preliminary design of interface between COMS (Communication, Ocean and Meteorological Satellite) and ground station. At the MODAC (MeteorologicaVOcean Data Application Center), the processed data are transmitted to user station via COMS with normalization and calibration by pre-processing of MI (Meteorological Imager) data. Due to consider satellite as radio relay, overall analysis containing uplink and downlink is needed. Specific link parameters can be obtained with using the outcomes of SRR (System Requirement Review) which was held on 13-14 June 2005, in Toulouse. From the relation between overall link margin and output power of HPA (High Power Amplifier) of MODAC, it is shown that even though the minimum power related with COMS receiving power range is transmitted at MODAC, the obtained link margin of HRIT could be above 3 dB at user station which antenna elevation angle is 10 degree.

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