Ranging in a dense multipath environment using an UWB radio link

被引：507
|
作者：
Lee, JY
Scholtz, RA
机构：
[1] Univ So Calif, Ultra Wideband Radio Lab, Los Angeles, CA 90089 USA
[2] Univ So Calif, Inst Commun Sci, Dept Elect Engn Syst, Los Angeles, CA 90089 USA
来源：
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS | 2002年 / 20卷 / 09期
关键词：
delay estimation; distance measurement; multipath channels; ultra-wideband (UWB);
D O I：
10.1109/JSAC.2002.805060
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：
A time-of-arrival (ToA)-based ranging scheme using an ultra-wideband (UWB) radio link is proposed. This ranging scheme implements a search algorithm for the detection of a direct path signal in the presence of dense multipath, utilizing generalized maximum-likelihood (GML) estimation. Models for critical parameters in the algorithm are based on statistical analysis of propagation data and the algorithm is tested on another independent set of propagation measurements. The proposed UWB ranging system uses a correlator and a parallel sampler with a high-speed measurement capability in each transceiver to accomplish two-way ranging between them in the absence of a common clock.
引用
收藏
页码：1677 / 1683
页数：7
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