TOA estimation with different IR-UWB transceiver types

被引：17
|
作者：
Guvenc, I [1 ]
Sahinoglu, Z [1 ]
机构：
[1] Mitsubishi Elect Res Labs, Cambridge, MA 02139 USA
来源：
2005 IEEE INTERNATIONAL CONFERENCE ON ULTRA-WIDEBAND (ICU) | 2005年
关键词：
D O I：
10.1109/ICU.2005.1570025
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：
In this paper, performances of stored-reference (SR), transmitted-reference (TR), and energy detection (ED) based time of arrival (TOA) estimation techniques are analyzed for impulse-radio ultra-wideband (IR-UWB) systems. Various maximum likelihood estimation approaches are investigated under different observation models, and a new estimator that exploits the noise statistics and power delay profile of the channel is proposed. Simulation results show that ED and TR perform well if the sampling rate is much smaller than the Nyquist rate. Also, exploiting the channel and noise statistics considerably improves the accuracy of peak selection.
引用
收藏
页码：426 / 431
页数：6
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