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Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks

机译:通过超宽带无线电进行本地化:着眼于未来传感器网络的定位方面

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摘要

UWB technology provides an excellent means for wireless positioning due to its high resolution capability in the time domain. Its ability to resolve multipath components makes it possible to obtain accurate location estimates without the need for complex estimation algorithms. In this article, theoretical limits for TOA estimation and TOA-based location estimation for UWB systems have been considered. Due to the complexity of the optimal schemes, suboptimal but practical alternatives have been emphasized. Performance limits for hybrid TOA/SS and TDOA/SS schemes have also been considered. Although the fundamental mechanisms for localization, including AOA-, TOA-, TDOA-, and SS-based methods, apply to all radio air interface, some positioning techniques are favored by UWB-based systems using ultrawide bandwidths.
机译:由于其在时域中的高分辨率,UWB技术为无线定位提供了一种极好的方法。它具有解析多径分量的能力,无需复杂的估算算法即可获得准确的位置估算。在本文中,已经考虑了UWB系统的TOA估计和基于TOA的位置估计的理论限制。由于最优方案的复杂性,已强调了次优但可行的替代方案。还考虑了混合TOA / SS和TDOA / SS方案的性能限制。尽管本地化的基本机制(包括基于AOA,TOA,TDOA和SS的方法)适用于所有无线空中接口,但使用超宽带宽的基于UWB的系统仍偏爱某些定位技术。

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