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美军MUOS系统及关键技术分析
倪娟,佟阳,黄国策,叶向阳
0
(空军工程大学 信息与导航学院,西安 710077;空军装备研究院,北京 100085)
摘要:
移动用户目标系统(MUOS)作为未来美军军事通信转型的重要组成部分,能够满足 美军全球范围高性能战术卫星通信能力的需求。在深入描述了MUOS系统构架、信息流的基础 上,分析比较了MUOS与地面蜂窝WCDMA移动通信系统,从信道传输特性、环路传输时延以及 信道衰落形式等方面指出了两者之间的差别。从空中接口、RAKE接收、抗干扰、功率控制和 无线电资源管理等方面着重分析了MUOS系统的关键技术,对比地面蜂窝WCDMA移动通信,指 出了MUOS在相应技术上做的改进和区别。最后从空间段、地面段和用户段三个层面归纳了MU OS系统目前发展现状,总结其未来研究趋势,并指出我国卫星移动通信发展应借鉴的地方。
关键词:  移动用户目标系统  战术卫星通信  公共空中接口  RAKE接收  功率 控制  无线电资源管理
DOI:
基金项目:国家自然科学基金资助项目(60802053);航空科学基金资助项 目(20095596016)
U.S. mobile user objective system(MUOS) and its key technology analysis
NI Juan,TONG Yang,HUANG Guo-ce,YE Xiang-yang
()
Abstract:
As an important part of the U.S. future military communication transfo rmation, the Mobile User Objective System(MUOS) can satisfy the U.S. military de mand of global tactical communication with high performance. On the basis of tho roughly describing the structure of MUOS and its data flow, MUOS is compared with the terrestrial celluar WCDMA system from the aspects of c hannel transmission characteristics, roundtrip transmission delay and channel fading style , and the differences between them are pointed out. The key technologies of MUOS are analysed,including common air interface, RAKE receiving, antijamming, power control and radio resource management . The improvement and difference of the related technologies applied in the new system are pointed out with comparison to the terrestrial celluar WCDMA communicatio n. Finally,the current development status of MUOS is summarized from the aspects of space segment, ground segment and user segment.What′s more,the further research trends of MUOS and what we can learn from it are presented.
Key words:  MUOS  tactical satellite communication  common air interface  RAKE receiving  power control  radio resource management
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