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Globally, there is a lack of universally accepted rules or standards for the core computational methods and simulation models used in frequency interference analysis for Non-Geostationary Satellite Orbit (NGSO) internet constellations. To address this issue, firstly, through a comprehensive analysis of the current International Telecommunication Union (ITU) standards related to interference assessment for FSS(fixed satellite services), and by integrating the scale and characteristics of NGSO internet constellations, the interference determination criteria based on statistical probability distributions is discussed, then, the mathematical model for aggregate interference analysis is established. Secondly, building upon this foundation, two analytical methods are proposed: the Opportunistic-Beamforming-Based Frequency Compatibility Analysis Method (OBB_FCM) and the Time-Slice-Based Interference Maximization Analysis Method (TSB_IMAM). Finally, simulation analysis is conducted on interference scenarios between the OneWeb constellation and CHINASAT GSO satellites to validate the effectiveness of these methods, providing a reference for frequency compatibility analysis between NGSO internet constellations and Geostationary Satellite Orbit (GSO) systems.

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Study on Frequency Compatibility Analysis Methods Between NGSO Constellations and GSO Systems

  • 会议论文

  • 发表日期：

    2026年

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  • Xiang Gao,
  • Ying Li,
  • Xiujuan Yao,
  • Xue Li,
  • Yiwei Qi,
  • Yuanhao Ma,
  • Zhen Li

摘要

Globally, there is a lack of universally accepted rules or standards for the core computational methods and simulation models used in frequency interference analysis for Non-Geostationary Satellite Orbit (NGSO) internet constellations. To address this issue, firstly, through a comprehensive analysis of the current International Telecommunication Union (ITU) standards related to interference assessment for FSS(fixed satellite services), and by integrating the scale and characteristics of NGSO internet constellations, the interference determination criteria based on statistical probability distributions is discussed, then, the mathematical model for aggregate interference analysis is established. Secondly, building upon this foundation, two analytical methods are proposed: the Opportunistic-Beamforming-Based Frequency Compatibility Analysis Method (OBB_FCM) and the Time-Slice-Based Interference Maximization Analysis Method (TSB_IMAM). Finally, simulation analysis is conducted on interference scenarios between the OneWeb constellation and CHINASAT GSO satellites to validate the effectiveness of these methods, providing a reference for frequency compatibility analysis between NGSO internet constellations and Geostationary Satellite Orbit (GSO) systems.