摘要
目前，电力线通信面临着信道时变衰落、信道频率选择性多径衰落、多址干扰以及背景噪声大等方面的挑战。作为后3G通信技术之一的超宽带（UWB）技术为应对这些挑战提供了新的思路。本文首先简要介绍了超宽带技术，然后从电力线信道特点出发，详细介绍了超宽带系统信道模型，进一步归纳和阐述了超宽带信道的测量方法并做了仿真；最后展望了应用前景。
At present, Power Line Communication （PLC） faces many challenges, such as time-varying channel attenuation, multipath frequency-selective fading, multiple access interference, and background noise etc. Then, ultra-wide band （UWB） technology, which is today considered as one of the technologies of communication for the B3G, offers a new thinking to reply these challenges. This article introduces UWB technology briefly at first, then on the basis of analyzing channel characteristic of power line, and the systematic model of UWB is introduced. Furthermore, the methods for calculateing UWB channels and are presented. Finally, the prospect applied is brought forward.
出处
《网络电信》
2006年第11期70-72,共3页
Network Telecom
关键词
超宽带(UWB)
电力线通信
信道特性
Ultra-wide Band（UWB）
Power Line Communication
Channel Characteristics
