Joint TOA/AOA Estimation of IR-UWB Signals in the Presence of Multiuser Interference

被引：0
|
作者：
Shang, Fang [1 ]
Champagne, Benoit [1 ]
Psaromiligkos, Ioannis [1 ]
机构：
[1] McGill Univ, Dept Elect & Comp Engn, Montreal, PQ H3A 0E9, Canada
来源：
2014 IEEE 15th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) | 2014年
关键词：
impulse radio ultra wideband; angle of arrival; time of arrival; multiuser interference; DENSE MULTIPATH; CHANNELS;
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：
We present a joint estimator of the time-of-arrival (TOA) and angle-of-arrival (AOA) for impulse radio ultra-wideband (IR-UWB) localization systems in which an antenna array is employed at the receiver and multiuser (MUI) interference exists. The proposed method includes 3 steps: (1) time-alignment and averaging to reduce the power level of the MUI and background noise; (2) preliminary TOA estimation based on energy detection followed by quadratic averaging; (3) joint TOA and AOA estimation using a recently proposed log likelihood function, but further extended to consider the effect of MUI. The validity of the proposed method is demonstrated by numerical simulations over a realistic space-time channel model.
引用
收藏
页码：504 / 508
页数：5
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