直升机卫星通信中旋翼遮挡问题及应对方法  

Problem of rotor occlusion in helicopter SATCOM and the solution

作　　者：董孝东[1] 

机构地区：[1]中国电子科技集团公司第十研究所,四川成都610036

出　　处：《现代电子技术》2014年第7期50-52,58,共4页Modern Electronics Technique

摘　　要：阐述了直升机卫星通信中旋翼遮挡对信号造成的影响,分析了不同航向和天线仰角条件下无遮挡时间比例,针对直升机宽带和窄带卫星通信前返向链路的不同特点,分别介绍了几种克服旋翼遮挡问题的方法。The effect of rotor occlusion in helicopter SATCOM on signal is elaborated. The proportion of time without occlu？sion with different course and antenna elevation angle is analyzed. Several solution of overcoming the problems of occlusion ispresented aiming at different characteristic of forward and backward link of helicopter SATCOM with wideband and narrow band.

关 键 词：直升机卫星通信 旋翼遮挡 缝隙通信 时间分集 

分 类 号：TN927.234[电子电信—通信与信息系统]