【摘要】 超宽带信号的高时间分辨率特性非常适合用于室内场景下的精确定位。本文回顾了超宽带系统位置估计问题,首先介绍了超宽带(Ultra wideband,UWB)定位系统的特点,然后给出了定位基本原理,指出了超宽带定位系统设计中面临的两个重要挑战,分别是超宽带信号采样问题和到达时间参数估计问题,应用压缩感知理论解决问题并给出了最新研究成果,最后描述了一种精密实时的UWB商用定位系统。更多还原

【Abstract】 The high time resolution of ultra-wide-band(UWB)signals facilitates precise position estimation in indoor scenarios.The problem of position estimation in UWB systems is reviewed,beginning with an overview of the characteristics of UWB positioning system.This overview is followed by the fundamentals of positioning.Two key challenges are issued,i.e.the problem of UWB signal sampling and the problem of time of arrival(TOA)estimation.Compressive sensing theory is applied to the problem solving and research results are given.Finally,a real-time precise location system for business is described.更多还原