中文摘要：

首先给出了超宽带技术（UWB）的概念，详细叙述了超宽带技术的基本原理和研究现状，阐述了超宽带的关键技术及在未来无线通信中的应用，给出了超宽带技术的技术规范、技术要求和国内外超宽带技术中关键技术的研究现状和面临的挑战，最后介绍了超宽带技术的发展动态。

英文摘要：

The concept of Ultra Wideband （UWB） technology is introduced. The basic principle of UWB technology and the research condition are narrated. The key techniques and application in the future wireless communication of UWB technology are discussed. The UWB technique criterion, technique request and the challenge of research the key technology are presented. Analysis indicates that UWB technology can enhance the capacity of communication system. Research trend of UWB technology in future is given finally.