基于新限速抽样的超宽带通信系统信道时延估计  

Channel and Timing Estimation for UWB Systems Based on Sampling with Finite Rate of Innovation

作　　者：邬春明[1] 陈晓娟[1] 艾闯[1] 

机构地区：[1]东北电力学院信息工程学院,吉林长春132012

出　　处：《电讯技术》2005年第6期117-120,共4页Telecommunication Engineering

摘　　要：提出了利用新限速抽样率理论解决信道估计问题,建立了既可用于宽带也可用于窄带信道估计的框架,此框架的抽样率低于奈奎斯特速率。通过实例展示了利用奈奎斯特速率抽样而工作在低于奈奎斯特抽样率的算法性能,减少了功耗,也降低了算法的复杂性。We consider the problem of channel estimation by using the recently developed theory for sampiing of signals with a finite rate of innovation. We show a framework which allows for lower than Nyquist rate sampling applicable for timing and channel estimation of both narrowband and wideband channels. In certain cases we demonstrate the performance exceeding that of algorithms using Nyquist rate sampling while working at lower sampling rates, thus saving power and computational complexity.

关 键 词：超宽带通信系统 新限速抽样率 信道估计 

分 类 号：TN911[电子电信—通信与信息系统]