UWB脉冲的优化设计  

Optimal Design for UWB Pulse

作　　者：邹卫霞[1] 聂晶[1] 周正[1] 

机构地区：[1]北京邮电大学无线网络实验室,北京100876

出　　处：《北京邮电大学学报》2006年第4期65-68,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(60372097);北京市自然科学基金项目(4052021);韩国仁荷大学IT研究中心项目(INHAUWB-ITRC)

摘　　要：从最大化频谱利用率的角度提出了一种设计超宽带(UWB)脉冲的算法,此算法是通过对理想UWB脉冲进行加窗、卷积来设计UWB脉冲的.所设计的脉冲不仅时间上受限减少了多址干扰,而且在满足频谱模板的情况下提高了频谱利用率,改善了UWB通信系统的性能.另外,本算法具有通用性与灵活性,适合任意国家的频谱模板.A new algorithm to design ultra-wideband pulse was presented to maximize the spectrum utilization efficiencies, ultra-wideband （UWB） pulse can be obtained by windowing the ideal UWB pulse and convolution. The pulse designed here not only was limited to time so as to reduce the multiple access interference but enhanced the spectrum utilization efficiency under the spectral mask constraint, which improved the transmission quality of a UWB system. Furthermore, a flexible and effective method for designing pulses satisfying arbitrary UWB frequency emission mask is provided in this algorithm.

关 键 词：超宽带脉冲无线电 频谱利用率 功率谱密度 频谱模板 

分 类 号：TN914.3[电子电信—通信与信息系统]