摘要
针对Ka频段星座系统之间的上行同频干扰问题,以干噪比为干扰评价指标,建立了星座系统间的上行干扰分析数学模型,设计了一对一和一对多的干扰仿真场景。以OneWeb系统和O3b系统为例,仿真分析了一对一和一对多干扰场景下两个系统之间相互干扰情况以及地球站间距对干扰结果的影响。
Aiming at the problem of uplink co-frequency interference between constellation systems in Ka band,a mathematical interference analysis model was established based on I/N as the evaluation criteria,and one-to-one link and one-to-multiple links interference simulation scenarios were proposed.Taking OneWeb system and O3B system as examples,the interference between these two systems are simulated under one-to-one link and one-to-multiple links scenarios,and the impacts of the earth station distance on the interference result are analyzed.
作者
李伟
张磊
严康
LI Wei;ZHANG Lei;YAN Kang(The State Radio Monitoring Center,Beijing 100876,China)
出处
《数字通信世界》
2021年第5期12-15,23,共5页
Digital Communication World
基金
国家自然科学基金资助项目(No.91738101)
国家重点研发计划(No.2020YFB1806100)。
关键词
宽带互联网星座系统
频率资源
同频干扰
干噪比
干扰分析
broadband Internet constellation system
frequency resource
co-frequency interference
interference to noise ratio
interference analysis