非静止轨道广播卫星系统IMT-2000干扰分析  

Interference analysis of non-geostationary orbit broadcasting satellite system to IMT-2000

作　　者：周猛[1,2] 凃国防[1] 谢飞波[3] 

机构地区：[1]中国科学院研究生院信息科学与工程学院,北京100049 [2]中国移动通信集团公司,北京100032 [3]信息产业部无线电管理局,北京100037

出　　处：《电波科学学报》2008年第6期1100-1105,共6页Chinese Journal of Radio Science

摘　　要：由于非静止轨道广播卫星系统NGSO-BSS与第三代移动通信系统IMT-2000的使用频段部分重叠,因此会产生系统间干扰,导致IMT-2000系统性能下降。为保证两系统共存,以日本拟发送的非静止轨道广播卫星系统为背景,建立了卫星系统对地面移动通信系统的干扰模型,用于分析该系统干扰地面同频段IMT-2000导致的上下行覆盖损失,并以此给出了能够保护IMT-2000系统的有效卫星发射PFD限值。Due to the frequency band used by non-GSO-BSS and candidate band used by IMT-2000 system is overlapping, the inter-system interference will lead to IMT-2000 system performance degradation. In order to guarantee that two systems could be co-existed with same allocation frequency band, an interference evaluation model from satellite to territorial cellular system is developed with the specific satellite system of NGSO-BSS that will be launched by Japan, and the model is used to analyze uplink and downlink system coverage loss of IMT-2000 because of interference from satellite. At last, the PFD mask for satellite is provided to protect WCDMA system effectively.

关 键 词：PFD限值 IMT-2000 非静止轨道广播卫星系统 频谱共享 干扰门限 

分 类 号：TN92[电子电信—通信与信息系统]