• Title/Summary/Keyword: 위성 통신

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Proof of SATCOM Antenna Heading Angle's Analytical Model (위성통신 안테나의 위성 지향각도 해석적 모델의 실증)

  • Cho, Gyuhan
    • Journal of the Korea Society for Simulation
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    • v.28 no.3
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    • pp.75-82
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    • 2019
  • A Satellite Communication (SATCOM), which is applied to various systems to communicate with other systems at the limited wired communication situation, is required to head at a stable point of the space, because this system uses a geostationary satellite. It is important to know satellite tracking heading angles such as elevation angle and azimuth angle for the immovable antenna's latitude, longitude, and altitude. Moreover, calculation of heading angle is critical for SATCOM antenna on a moving platform. In this study, a antenna heading angle calculation method is applied to compute elevation and azimuth angle for a SATCOM antenna and the heading angle simulation is executed for the Korea peninsula and surrounding areas. To verify this simulation, satellite tracking test is conducted using a SATCOM antenna which uses monopulse signal tracking method. The simulation is confirmed by comparing this test result with the simulation. And we make a suggestion for calculation of polarization angle of this antenna.

통신위성을 이용한 서비스

  • Korean Associaton of Information & Telecommunication
    • 정보화사회
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    • s.105
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    • pp.75-77
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    • 1996
  • 위성통신은 비용이 높았던 초기에는 대륙간의 국제전화와 TV 중계방송에 이용되었지만 최근에는 비용이 대폭 낮아져 위성통신의 특징을 살린 이용방법이 등장하고 있다.

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연구회 소식

  • 위성통신우주산업연구회
    • Satellite Communications and Space Industry
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    • v.15 no.1
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    • pp.137-142
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    • 2008
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Performances Evaluation of Ka Band Communications Transponder for COMS (통신해양기상위성 Ka 대역 통신탑재체 성능검증)

  • Lee, Yong-Min;Lee, Seong-Pal
    • Journal of Satellite, Information and Communications
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    • v.3 no.2
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    • pp.43-47
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    • 2008
  • COMS is the one of Korean hybrid geostationary satellite and is scheduled to be launched in 2009 by Arian V into $128^{\circ}$ E longitude. COMS is designed and manufactured for three main objectives which are Communications, Oceanographic, and Meteorological missions. It provides the weather monitoring, ocean monitoring, and Ka band satellite communication services by means of three different payloads. The Ka band communications payload was developed by Electronics and Telecommunications Research Institute (ETRI), and provides not only the digital transmission for the communication services against natural disaster but also digital transmission for the high speed multimedia services. This paper describes the overview of the electrical and mechanical design and measured performances of the Ka band communications transponder flight model (FM) for COMS.

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