超宽带能量检测接收机的设计研究  

The Study of Energy Detection for UWB Receiver

作　　者：姚尚绩[1] 张洪哲 郑继禹[3] 

机构地区：[1]广西电力职业技术学院,广西南宁530007 [2]哈尔滨市瑞兴电气有限公司,黑龙江哈尔滨150000 [3]桂林电子科技大学,广西桂林541004

出　　处：《企业科技与发展（下半月）》2008年第6期103-106,共4页

基　　金：国家自然科学基金项目(60372037)

摘　　要：根据PPM调制方式的特点和实际接收到的超宽带脉冲信号波形的特征,为了在超宽带通信中,简单、快速地接收信号,文章采用基于能量检测的接收机方案,用门控能量检测电路来代替时域相关器,将射频检测与同步捕获相结合实现快速捕获同步。实测数据验证了此接收机方案在100Mbps高传输速率的情况下能取得较好的超宽带信号接收效果。该方法在提供了良好的超宽带信号接收效果的同时,简化了接收机射频端电路的复杂度,减少了接收机同步捕获所需的时间。Based on the transient characteristic of received UWB signal and PPM modulation scheme, in order to receive the UWB signal simply and rapidly, a scheme of energy detection receiver is presented, Unlike the traditional correlator receiver, this scheme adopts an energy detection circuits to detect UWB signal, replacing the time domain correlator, this scheme combines the detection and synchronization acquisition. Theoretical analysis and experiment proves that the receiver can get good performance at the transmission rate of lOOMbps. This scheme provides f＇me UWB signM receiving effects, low complexity and less the synchronization time.

关 键 词：接收机 跳时脉冲位置调制 能量检测 超宽带 同步捕获 

分 类 号：TN925.5[电子电信—通信与信息系统]