一种新颖的DT超宽带接收机  

A novel DT ultra-wideband receiver

作　　者：雷虎宝[1] 林基明[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《光通信研究》2007年第5期63-66,共4页Study on Optical Communications

基　　金：国家自然科学基金资助项目(60472091);教育部新世纪优秀人才支持计划(NCET-05-0754);广西自然科学基金资助项目(桂科自0447093)

摘　　要：针对传统的发射参考接收机系统资源利用率低,带噪的解调模板使接收机性能下降的缺点,文章给出了一种低复杂度的DT(dirty template)接收机。该接收机利用多个已判决的符号接收波形提取解调模板,一方面降低了解调模板信号中的噪声,另一方面省去了参考信号占用的能量和时间资源,达到了满数据发送率。文章从理论上分析了DT接收机的性能,仿真结果证明了理论推导的正确性。In view of power inefficiency and high noise vulnerability in conventional transmitted-reference UWB systems, a low complexity Dirty Template （DT） receiver is developed, which receives the demodulation signals extracted by using multiple decided received waveform of the data symbols, considerably lowering the noise level in the self-derived template waveform and improving the overall detection performance. There is little loss in energy efficiency as no-reference pilots are required. The performances of the receiver are analyzed and the theoretical deduction verified by simulation results.

关 键 词：超宽带 发射参考 能量捕获 瑞克接收机 

分 类 号：TN914[电子电信—通信与信息系统]