【作者】 程璐； 唐友喜； 李少谦；

【Author】 CHENG Lu, TANG You-xi, LI Shao-qian (National Key Laboratory of Communication, University of Electronic Science and Technology of China, Chengdu, 610054, China)

【机构】 电子科技大学通信抗干扰技术国防重点实验室；

【摘要】 无线个域网是当前无线通信研究的热点之一,UWB超宽带技术在无线通信领域中有着巨大的潜在应用市场。目前,IEEE802．15．3a的两种主流技术(DS-CDMA和MB-OFDM)争执不下,形成了两大对立阵营。本文对UWB系统的这两种时域和频域实现方案进行详细的分析比较,说明了二者在理论上的等效性; 并且从抗干扰性能、多径性能、复杂度及共存性等多方面比较了二者的特点。同时对超宽带系统中的暂态效应进行了说明。更多还原

【Abstract】 Wireless Personal Network is one of the key technologies in the research field of wireless communication. UWB system possesses a large potential in the application market. At present, there are two main realization algorithms: DS-CDMA in time domain and MB-OFDM in frequency domain. In this paper, we compared the two algorithms and narrate their equivalence. Meanwhile, their performance in anti-jamming, multipaths environment and the complexity are compared. Finally, the instantaneous status of the UWB system has been analyzed.更多还原