Spectral Coexistence between LEO and GEO Satellites by Optimizing Direction Normal of Phased Array Antennas

作     者：Chen Zhang Jin Jin Hao Zhang Ting Li 

作者机构：Tsinghua Space Center Tsinghua University Technology and Engineering Center for Space Utilization Chinese Academy of Sciences 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2018年第15卷第6期

页      面：18-27页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0839[工学-网络空间安全] 0804[工学-仪器科学与技术] 080402[工学-测试计量技术及仪器] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (grant no. 91738101 and 91438206) 

主　　题：狮子座 GEO 天线 数组 光谱 共存 卫星 优化 

摘      要：This paper addresses the spectral coexistence between LEO constellation and GEO belt for global distributed earth stations. A specific method is introduced to mitigate the in-line interference by tilting the direction normal of phased array antennas of LEO satellites, and the optimal direction is found by solving a non-linear programming problem. The simulation results prove that the proposed approach leads to greater link availability while guaranteeing the desired received signal level especially for low-latitude earth stations.