本论文从TH-UWB的信号结构特点出发，分析了TH-UWB系统多址干扰与 CDMA系统多址干扰的不同特点，提出了多个低复杂度的多用户检测器。-In this paper, from the TH-UWB signal structure characteristics of an analysis of TH-UWB system with multiple access interference CDMA systems multiple access interference of

UWB脉冲设计与窄带干扰抑制 为了避免对频带内已有的窄带通信系统造成干扰，在进行波形设计时，如果能使UWB脉冲在干扰频带内的能量下降，即在窄带通信系统的工作频带内实现陷波，则可达到抑制窄带干扰的目的。-UWB pulse design and narrow-band interference suppression in order to avoid the narrow band communication systems has been caused by interference,

：近距离目标超高分辨率微波成像技术在安全检测、非破坏性控制、生物医学等领域中有着非常重要的应用 价值和广阔的应用前景。该文利用基于窄脉冲形式的超宽带时域雷达系统研究近距离目标的高分辨率ISAR成像， 给出了仿真和实测结果。利用转台旋转目标，基于超宽带脉冲源和超宽带收发天线以及高性能取样示波器，配以同 步触发脉冲和自行研发的数据采集软件，搭建了该时域雷达实验系统，提出了准确获取目标回波信息的实验条件， 和实现回波延时精确校正的误差补偿方法。并针对采样时间窗内的杂波干扰，讨论了时域后

Review of current short/medium range wireless standards and expected challenges for future systems • Introduction to Ultra-wideband (UWB) Technology – What is it? – Possible benefits and challenges • Performance example of M-PAM a

Ultra Wide Band (UWB) is a technology for the transmission of data using techniques which cause a spreading of the radio energy over a very wide frequency band, with a very low power spectral density. The low power spectral density limits the interfe