Finite-Resolution Digital Receiver for UWB TOA Estimation

被引：12

作者：

Sun, Fei ^{[1
]}

Yin, Huarui ^{[1
]}

Wang, Weidong ^{[1
]}

机构：

[1] USTC, Dept Elect Engn & Informat Sci, Hefei 230027, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 01期

关键词：

TOA; IR-UWB; quantization; finite-resolution; IMPULSE RADIO; PERFORMANCE; SYSTEMS; DESIGN;

D O I：

10.1109/LCOMM.2011.111611.112074

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, the effect of finite-resolution analog-to-digital converter (ADC) quantization on ultra-wideband (UWB) time of arrival (TOA) estimation is investigated. The deflection criterion is introduced for optimizing the nonuniform quantization. The training based TOA estimation algorithm using maximum likelihood (ML) rule is proposed. Compared with the full-resolution and energy-detection (ED) estimators via simulation, we demonstrate that our training based 3-level quantization scheme is satisfactory because it can approach a full-resolution estimator while decreasing the complexity greatly.

引用

页码：76 / 79

页数：4

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