Sub-Nyquist Rate UWB Indoor Positioning using Power Delay Profile and Time of Arrival Estimates

被引：0

作者：

Maqsood, Bilal ^{[1
]}

Naqvi, Ijaz Haider ^{[1
]}

机构：

[1] Lahore Univ Management Sci, Dept Elect Engn, Lahore, Pakistan

来源：

2017 IEEE 86TH VEHICULAR TECHNOLOGY CONFERENCE (VTC-FALL) | 2017年

关键词：

Indoor positioning; Sub-Nyquist; Time of arrival; Power delay profile; Cramer-Rao bound; SYSTEMS; SIGNALS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Ultra Wide-band (UWB) indoor positioning provides very accurate location estimates because of extremely narrow time resolution of UWB signals. The most critical part is the estimation of the time of arrival (ToA). In this paper, we propose a novel method for ToA estimation that achieves high accuracy with sub-Nyquist sampling. The proposed method first determines a coarse estimate of ToA by using an energy detection algorithm. Thereafter the power delay profile (PDP) parameters are used to find out the final estimate of ToA. A Cramer-Rao lower bound is analytically derived for the proposed scheme. The simulation results, using the UWB channel models and measured channel responses in an indoor channel environment, show the effectiveness of the scheme in both LOS and NLOS scenarios.

引用

页数：5

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