论文部分内容阅读
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。
In this paper, the feasibility of applying UWB technology in satellite communications is analyzed in detail. The link calculations of C-band, Ku-band and Ka-band UWB signals are carried out. The results show that the received power of the ground station meets the requirements of FCC for power spectral density . Then the signal transmission rate that can be obtained by using the MB-OFDM system is analyzed. The results show that the application of ultra-broadband satellite communications technology can also guarantee a certain transfer rate. The application of ultra-wideband technology in satellite communications, the wide coverage of satellite communications, the advantages of stable transmission signal quality and the combination of anti-interception, anti-detection and anti-interference of ultra-wideband technology can provide a reliable hidden and confidential military communications Communication, this article provides the basis for further research on the application of UWB technology in satellite communications.