基于超宽带技术卫星通信的研究  

Investigation of Satellite Communications Based on UWB Technology

作　　者：陈思[1] 张邦宁[2] 郭道省[2] 

机构地区：[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系

出　　处：《军事通信技术》2007年第1期15-18,共4页Journal of Military Communications Technology

摘　　要：文中首先具体分析了卫星通信中应用超宽带技术的可行性,对 C 波段,Ku 波段以及 Ka 波段 UWB信号传输进行了链路计算,结果表明,地面站的接收功率满足 FCC 对功率谱密度的要求。然后对采用 MB-OFDM体制可获得的信号传输速率进行了分析。结果表明卫星通信应用超宽带技术同样能够保证一定的传输速率。在卫星通信中应用超宽带技术,将卫星通信覆盖范围广、传输信号质量稳定等优点和超宽带技术的抗截获、抗检测和抗干扰等特性相结合,可为军事通信提供可靠的隐蔽、保密通信,此文为超宽带技术在卫星通信中应用的进一步研究提供了依据。First, the feasibility of adopting UWB technology to the satellite communications was analyzed. A link budget calculation of UWB signal transmission on C-band, Ku-band and Ka-band was done. The results show that the received power of the terrestrial station meets the request of FCC. Then the transmission speed of signal employing multiband UWB was calculated with the results that applying UWB technology to satellite communications can also promises a certain transmission speed. By combining the advantages of the wide coverage and the stable quality of transmitted signal in satellite communications and the characteristics of anti-interception, anti-detection and anti-jamming of UWB technology, a reliable, covert, and secrete communication can be obtained for the military, which provides a basis for more research on satellite communications with UWB technology.

关 键 词：卫星通信 超宽带 链路计算 容量 

分 类 号：TN927.2[电子电信—通信与信息系统]