摘要
对高速超宽带（UWB）无线通信技术进行了研究,提出了双载波-正交频分复用（DC-OFDM）UWB系统方案,包括频带划分方案、帧结构和发射端系统方案以及参考接收机方案,给出了方案的计算机仿真结果和硬件实验结果.DC-OFDM UWB方案采用独创的双载波结构,降低了对射频和基带关键电路硬件实现的要求,获得了频域分集效果,提高了频谱使用灵活性.硬件实验系统的无线传输速率达到110 Mbps,传输距离为10m,信号发射功率小于0.1mW.
In the paper the ultra-wideband （UWB） technology is investigated, and a dual carrier-orthogonal frequency division multiplexing （DC-OFDM） UWB scheme is proposed, including its band-division scheme, frame structure and transmitting end scheme, as well as reference design of receiving end. The simulation and trial experiment results are given. The proposed scheme utilized a novel dual carrier structure to simplify hardware design, and obtain frequency diversity gain, and make spectrum utilization easier. The experiment system achieved 110 Mbps wireless transmission rate at 10 meters, with signal transmitting power less than 0. 1 mW.
出处
《高技术通讯》
CAS
CSCD
北大核心
2007年第7期676-680,共5页
Chinese High Technology Letters
基金
863计划（2005AA123320,2003AA123230,2001AA123042）资助项目.
关键词
超宽带
双载波
正交频分复用
ultra-wideband （UWB）, dual carrier, orthogonal frequency division multiplexing （OFDM）
