【作者】 朱军；

【导师】 盛卫星； 姜安；

【作者基本信息】 南京理工大学 ， 电子与通信工程， 2008， 硕士

【摘要】 卫星“动中通”系统是卫星通信地球站一种特殊类型,在现在通信系统中有着广泛的应用前景,但是高昂的造价一直是限制其使用的一个主要因素。本文从系统的角度针对陆地“动中通”系统展开研究、设计,对“动中通”卫星通信系统中的通信体制、天线选型、跟踪体制选择、跟踪接收信号产生等各项关键技术展开研究,设计出一种通用性好、性价比高、外形尺寸小的Ku频段卫星通信“动中通”系统;并对实际设计中设备选型给出参考。通信系统采用扩频体制,具有一定的信息保密能力。设计的系统经过试验验证,效果良好,具有很好应用与推广前景,可广泛应用于军事、应急、突发通信等领域。更多还原

【Abstract】 SCOTM (Satellite communication On-The-Move) system is a special application in the terrestrial satellite communication system. It is a nice broad practical application of modern communication system. But its exorbitant cost of manufacture is a mainly factor that decrease it become popular.In this paper, author emphasize on the studying and designing of the entire SC-OTM system. Analyze the key technology in the system designing, such as communication mode, antenna prototype, steady console tracking mode, tracking receiver signal generating, etc. Present a type of Ku-band SC-OTM system, which has many good virtues, such as all-purpose applications, high performance ratio it cost, low profile, etc. Also present other relevant devices or facilities designing method and selecting. The communication system is working on the DSSS mode, which has intrinsic ability of information secreting when transmitting. The system has been validated by practical using, and performed good characteristics. It will be popular using in many fields, such as military communication system, emergency communication system, incidental affair communication system, etc.更多还原