【作者】 张淑静； 刘晓锋； 杨明川；

【Author】 Zhang Shujing;Liu Xiaofeng;Yang Mingchuan;Harbin Institute of Technology School of Electronics and Information Engineering;

【机构】 哈尔滨工业大学电子与信息工程学院； 中国电子科技集团公司航天信息应用技术重点实验室；

【摘要】 在建立星地一体化网络过程中,一个关键的问题就是频率共享的问题。采用频率共享拥有缓解频谱稀缺、简化终端复杂度等优点。但势必会在卫星、地面基站以及移动终端之间产生同频干扰,对通信质量产生影响,因此需要采取一定措施来抑制这种同频干扰。本文在对星地一体化网络进行学习的基础上,对星地一体化中的关键问题之一同频干扰问题进行了分析,确定了主要的干扰类型为卫星下行链路对地面网络的干扰以及用户终端对卫星上行链路的干扰。基于此,本文提出了采用盲分离算法来进行星地一体化网络下行同频干扰抑制。更多还原

【Abstract】 In the process of establishing a Integrated Satellite and Terrestrial Networks,a key issue is frequency sharing.The frequency sharing has the advantage of alleviating the spectrum scarcity problem and simplifying the terminal complexity.However,it is inevitable to produce the co-channel interference in satellite,ground base station and mobile terminal,which will affect the communication quality.In this paper,through study on Integrated Satelhte and Terrestrial Networks,I learn that main types of interference is satellite downlink interference to the ground network and user terminal to the satellite uplink interference.Based on this,this paper proposes a blind signal separation algorithm for Integrated Satellite and Terrestrial Networks downlink co-channel suppression.更多还原