一种基于统计参数的IR-UWB系统TOA估计方法  

TOA estimation based on the statistical parameters for the IR-UWB system

作　　者：盛涛[1] 张浩[1] 崔学荣[1] 刘兴[1] 

机构地区：[1]中国海洋大学信息科学与工程学院电子系,山东省青岛市266100

出　　处：《中国科技信息》2013年第9期90-91,共2页China Science and Technology Information

基　　金：国家自然科学基金(60902005)资助课题

摘　　要：在室内无线定位领域中,基于脉冲超宽带的定位技术由于其窄脉冲特性,得到了广泛的关注。到达时间估计(TOA)能够充分发挥IR-UWB的优势,成为了定位技术的首选。通过对系统接收信号的统计特性研究,提出了一种基于联合统计参数的门限估计方法。仿真表明,该方法能够在一步估计的情况下,达到比较好的测距精度。In the field of wireless indoor positioning, the location technology based on Impulse ＆adio Ultra Wide Band（IR-UWB） has attracted broad attention due to the narrow pulse characteristics. The Time of Arrival（TOA） estimation, giving full play to the advantages of IR-UWB, become the first choice of positioning technology. ）n this paper, with the research of statistical properties of the received signal, a non-coherent estimation algorithm is proposed. The simulation results show that the method can achieve better ranging accuracy in the case of one step estimation.

关 键 词：脉冲无线电 测距 到达时间估计 统计参数 

分 类 号：TN911.23[电子电信—通信与信息系统]