超宽带系统的功率谱密度限制问题研究  

Research on the Power Spectral Density Limit in UWB Systems

作　　者：赵亮[1] 刘双平[1] 金梁[1] 陈金玉[1] 

机构地区：[1]国家数字交换系统工程技术研究中心,郑州450002

出　　处：《电信科学》2011年第2期34-39,共6页Telecommunications Science

基　　金：国家"863"基金资助项目(No.2009AA011202;No.2009AA011205);国家科技重大专项资助项目(No.2009ZX03006-007)

摘　　要：目前,民用的超宽带(UWB)系统需要满足功率谱密度限制,这不仅大大限制了UWB系统的通信距离和通信速率,且难以保证UWB信号的电磁兼容性能,导致UWB系统迟迟无法得到推广应用。针对该问题,本文给出了不满足功率谱密度限制的扩展超宽带(EUWB)系统的4种潜在应用策略,并指出了它们的优势和存在的问题,为UWB技术未来的发展和应用提供了一种新的思路。The current UWB systems for civilian applications must satisfy the power spectral density limit,which greatly restrict the communications distance and communications rate of UWB systems,and the electromagnetic compatibility of UWB signals is hard to be guaranteed.Hence,UWB systems can not achieve extended applications.Aiming at this problem,this paper has provided four potential application strategies for EUWB（extended UWB） systems without satisfying the power spectral density limit,and their advantages and disadvantages are discussed.The research can offer a new way for the future development and application of UWB technology.

关 键 词：超宽带 功率谱密度限制 通信距离 通信速率 电磁兼容 

分 类 号：TN92[电子电信—通信与信息系统]