摘要
针对我国Ka频段使用卫星固定业务的非对地静止卫星轨道(Non-Geostationary Satellite Orbit,NGSO)星座系统对对地静止卫星轨道(Geostationary Satellite Orbit,GSO)系统的干扰问题开展研究.在梳理国际电联技术建议书和《无线电规则》的基础上,通过理论分析和仿真计算等手段,对不同链路场景下NGSO星座系统对GSO系统在Ka频段的干扰问题进行分析计算.研究结果表明,在NGSO星座系统与GSO系统上下行通信有重叠部分的频段,其对GSO系统都会产生严重干扰.最后给出降低干扰的措施与建议.为我国未来拟使用Ka频段的NGSO星座系统对GSO系统的干扰分析提供参考.
The interference of China＇s non-geostationary satellite orbit （NGSO） constellation system to geostationary satellite orbit （GSO） system with fixed-satellite service in Ka band is studied in this paper. Based on combing the ITU-R recommendation and radio regulation, the problem of NGSO constellation interfering GSO system in the different link scenarios are discussed via theoretical analysis and simulation calculation. The simulation results show that the NGSO constellation system would cause serious interference to the GSO system in the overlapping band of both the uplink and downlink. Finally, the measures and suggestions for reducing the interference from the NGSO constellation system are given. This paper give a reference for the interference analysis of the future NGSO constellation system to the GSO system in Ka band.
出处
《电波科学学报》
CSCD
北大核心
2017年第5期619-625,共7页
Chinese Journal of Radio Science
基金
国家科技重大专项基金(No.2015ZX03002008)
