UWB脉冲正交综合优化设计算法  

Optimal Pulse Design Based on Synthesis of PSWFs for UWB

作　　者：陈国东[1] 武穆清[1] 

机构地区：[1]北京邮电大学宽带通信网络实验室,北京海淀区100876

出　　处：《电子科技大学学报》2008年第5期660-663,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(60372101)

摘　　要：从提高频谱利用率和满足FCC辐射掩模规定的角度出发,采用频域反推和时域正交综合相结合的设计方法,利用扁长椭球波函数(PSWF)来生成脉冲基。在此基础上,应用基于有限项PSWF脉冲基的正交综合来优化设计UWB成形脉冲。仿真结果表明该算法设计的脉冲不仅能很好地满足FCC辐射掩模的要求,而且具有较好的频谱利用率。A novel ultra-wideband （UWB） pulse design algorithm combining the methods of spectrum analysis and orthogonal basis synthesis in time domain is presented to improve the spectrum utilization efficiency and conform the federal communications commission （FCC） emission mask constraint. UWB pulse can be obtained by orthogonal synthesis of finite number of prolate spheroidal wave function （PSWF） pulse basis, which matching FCC emission mask. The simulation results show that the pulse designed by this algorithm can perfectly meet the requirement of FCC emission mask and has higher spectrum utilization efficiency.

关 键 词：脉冲优化设计 正交综合 扁长椭球波函数 频谱利用率 超宽带系统 

分 类 号：TN915.142[电子电信—通信与信息系统]