• Title/Summary/Keyword: highly elliptical orbit(HEO) satellite system

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A Study on the Frequency Sharing between HEO FSS System and GSO FSS Network in the 12GHz Band (12GHz 대역에서 HEO 위성시스템과 GSO 위성망간의 주파수 공유 방법 연구)

  • Lim, Sang-Hee;Seong, Hyang-Suk
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2003.11a
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    • pp.567-571
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    • 2003
  • Owing to the insufficient satellite resources such as frequency and orbit, the interest in the sharing of these resources has been increasing. ITU-R has been studying on the power limitation, the interference mitigation techniques etc. in order to facilitate the frequency sharing between different systems. Therefore, we studied on the interference mitigation techniques between HEO FSS system and GSO FSS network. We performed the simulation using four mitigation techniques and, based on the results of simulation, evaluated these techniques.

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Study on the Power Flux-Densities for HEO FSS in the 4 GHz and 11 GHz bands (4GHz 및 11GHz 대역에서 HEO FSS의 전력속밀도에 관한 연구)

  • 임상희;성향숙
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.28 no.10A
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    • pp.830-837
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    • 2003
  • The interests of HEO is growing due to the congestion of GSO. ITU-R is studying about the pfd for HEO FSS in the 4GHz and 11GHz bands that will adequately protect the FS and, at the same time, will better reflect HEO FSS satellite requirements. We simulated and analysed the interference effects from the USAKU-H2 type of HEO FSS system into the FS receive station in these bands. Based on our analysis, we evaluated if the pfd masks proposed in ITU-R provided the appropriate protection to the FS located at near latitude 40$^{\circ}$N.